Best Air Ride 5Th Wheel Pin Box for Your Fifth-Wheel Setup
A strong air-ride fifth-wheel pin box pairs a verified fit for your trailer with enough rated capacity and a suspension design suited to your towing setup. The Lippert Components L05 Flex Air 21,000 lbs leads this group because it combines an air bag, oil shock, rubberized compound, and pivoting head to address road shock, rebound, and fore-to-aft movement. But fitment comes first: these products list different Lippert, Fabex, Rhino, and other pin-box patterns, and some only suit a particular replacement design.
This roundup compares seven options from 18,000 to 24,000 pounds, including a gooseneck-conversion model and several Trailair air-ride designs. Check your trailer’s current pin-box model and mounting pattern, then confirm capacity and hitch arrangement before choosing.
The Lippert Components L05 Flex Air 21,000 lbs is the leading all-around choice for buyers whose trailer fitment is confirmed. It combines an air bag with an oil shock that controls rebound, a rubberized compound for additional buffering, and a pivoting head designed to reduce fore-to-aft movement. Its 21,000-pound rating is substantial, but the supplied information does not specify compatible pin-box patterns, so verify fitment before ordering.
For a clearly listed 1116 replacement, consider the CURT Lippert Components M19 Air Ride Pin Box instead.
Our Top Picks
Best OverallIts 21,000-pound rating combines an air bag, oil shock, rubberized buffer, and pivoting head to address shock, rebound, and fore-to-aft motion.
View on Amazon
Broad FitmentRated for 21,000 pounds, it replaces several listed LCI patterns, including 1621, 1716, 0719, and 1116.
View on Amazon
Highest CapacityShocker Quick Air Ride Pin Box
Its listed 24,000-pound GTW is the highest here, and the package includes a replacement pin box and Shocker air hitch with kingpin.
View on Amazon- 1621 Replacement CURT L05 Air Ride 21K
- Gooseneck Setup REESE 94920 Goose Box
Compare these air-ride fifth-wheel pin boxes
| # | Product | Weight | Compatible with Vehicle Type | Buy |
|---|---|---|---|---|
| 1 | 1. Lippert L05 Flex Air 21KBest Overall | 243 lb | — | View on Amazon |
| 2 | 2. CURT Lippert M19 Air RideBroad Fitment | 158 lb | — | View on Amazon |
| 3 | 3. Shocker Quick Air Ride Pin BoxHighest Capacity | 123.5 lb | 12.5" Wide Pin Box (Also Fits M19 Rota-Flex… | View on Amazon |
| 4 | 4. CURT L05 Air Ride 21K1621 Replacement | 170 lb | Truck, SUV | View on Amazon |
| 5 |  5. REESE 94920 Goose BoxGooseneck Setup | 220 lb | Trailer, Truck | View on Amazon |
| 6 |  6. Lippert CURT L05 Flex Air 18K18,000-pound Flex Air setup | 105.23 kg | Trailer | View on Amazon |
| 7 |  7. Lippert 2020 Air RideRhino Box replacement | 155 lb | — | View on Amazon |
Detailed Reviews: Best Air Ride 5Th Wheel Pin Box
#1 · Best Overall
1. Lippert L05 Flex Air 21K
- Weight: 243 lb
Best for: Air ride with rebound control.
Why it ranks #1: Its 21,000-pound rating combines an air bag, oil shock, rubberized buffer, and pivoting head to address shock, rebound, and fore-to-aft motion.
An oil shock absorber handles rebound while the air bag absorbs road shock, giving this 21,000-pound Flex Air pin box separate listed roles for damping motion. A pivoting head and rubberized compound add further buffers, addressing fore-to-aft movement and jarring between the fifth-wheel RV and tow vehicle.
The air bag absorbs road shock and vibration, while the oil shock controls rebound and kickback; those distinct functions target different parts of towing motion. A rubberized compound adds a buffer against jarring, and the pivoting head is described as reducing fore-to-aft movement. Together, these features address chucking and vertical tug-of-war as well as impact. At 243 pounds, the listed item weight is relevant when planning handling and installation.
- 21,000-pound rating
- Air bag absorbs road shock and vibration
- Oil shock controls rebound and kickback
- Pivoting head and rubberized compound add motion control
- The listed item weight is 243 pounds.
Skip it if you need a listed Lippert 1621 replacement with a lower listed item weight; CURT L05 Air Ride 21K lists 170 pounds.
This Flex Air suits buyers prioritizing separate air-bag, oil-shock, rubberized-compound, and pivoting-head controls within a 21,000-pound rating. Factor its 243-pound listed weight into handling and installation plans.
Full product details
| Brand | Lippert Components |
|---|---|
| Item Weight | 243 pounds |
| Item model number | 369535 |
| Manufacturer | Trailair® |
| Part Number | 369535 |
| Model | L05 Flex Air® Pin Box 21,000 lbs |
| Dimensions | 42 x 16.25 x 20 inches |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer – www.P65Warnings.ca.gov |
Listed on Amazon as: L05 Flex Air® Pin Box 21,000 lbs
View on Amazon#2 · Broad Fitment
2. CURT Lippert M19 Air Ride
- Weight: 158 lb
Best for: Multiple LCI pattern replacement.
Why it ranks #2: Rated for 21,000 pounds, it replaces several listed LCI patterns, including 1621, 1716, 0719, and 1116.
Replacement coverage for several popular LCI pin-box patterns is this Trailair model’s clearest differentiator, including 1116, 1621, 1716, and 0719 variants. Its air bag acts as a buffer between tow vehicle and coach, aiming to absorb road shock and vibration while supporting a less fatiguing towing experience.
The air bag buffers the tow vehicle and coach, with the listing tying that arrangement to absorbing road shock and vibration and reducing driver fatigue. Its broad replacement list covers 16K and 18K 1621, 21K long-jaw 1621, 21K 1716, 18K 0719, and 21K 1116 patterns. That specificity can help buyers identify a replacement route, but matching the existing LCI pattern and jaw configuration remains essential before installation.
- Air bag buffers tow vehicle and coach
- Aims to absorb road shock and vibration
- Listed to reduce driver fatigue
- Replaces several specified LCI pin-box patterns
- The listed replacement range does not include every pin-box pattern.
Skip it if you have a Rhino Box design; Lippert Components 807710 is listed specifically as a Rhino Box replacement.
This Trailair suits owners whose existing pin box matches one of its listed LCI patterns and who want an air-bag buffer for towing. The specific jaw and capacity variants govern fit.
Full product details
| Brand | Lippert Components |
|---|---|
| Color | Black |
| Included Components | Pin Box |
| Item Weight | 158 pounds |
| Manufacturer | Trailair® |
| Part Number | 155943 |
| Model Number | 155943 |
Listed on Amazon as: CURT Lippert Components 155943 M19 Air Ride Pin Box, 21K (Replaces LCI 1116 Pin Box), Black, Medium Jaw (21,000 lbs. Capacity)
View on Amazon#3 · Highest Capacity
3. Shocker Quick Air Ride Pin Box
- Weight: 123.5 lb
- Compatible with Vehicle Type: 12.5" Wide Pin Box (Also Fits M19 Rota-Flex…
Best for: Quick-install kingpin replacement.
Why it ranks #3: Its listed 24,000-pound GTW is the highest here, and the package includes a replacement pin box and Shocker air hitch with kingpin.
A replacement pin box supplied with a Shocker Air Hitch kingpin combines air ride with a bed-mounted fifth-wheel hitch, enabling a different setup from gooseneck-coupler models. The listing says installation replaces the factory pin box in minutes and gives the assembly a 24,000-pound gross trailer weight rating.
This assembly pairs a replacement pin box with an air hitch and kingpin, and works in conjunction with a bed fifth-wheel hitch. The stated quick replacement installation can simplify changing the factory pin box, while the air ride shock dampening is described as absorbing jerking, tugging, bumps, and damaging forces. Fit is listed for Lippert 1116 and 0115, FabEx 500, 503, 520, 530, and 560, and RBW7028; the listing excludes 1716.
- 24,000-pound gross trailer weight rating
- Includes replacement pin box and air hitch with kingpin
- Works with a bed fifth-wheel hitch
- Listed quick installation replaces the factory pin box
- Pin box bolts are not included.
Skip it if you need a gooseneck-ball coupler rather than a bed fifth-wheel hitch; Reese 94920 connects to a gooseneck ball.
This Shocker setup suits buyers replacing a factory pin box while retaining a bed fifth-wheel hitch, with a stated 24,000-pound rating. Check its listed fit patterns and source pin box bolts separately.
Full product details
| Brand | Shocker Hitch |
|---|---|
| Compatible with Vehicle Type | 12.5" Wide Pin Box (Also Fits M19 Rota-Flex (Doesn't Fit 1716), 5th Wheel Camper, Fits Lippert 1116 0115 FabEx500 503 520 530 560 RBW7028 |
| Included Components | Air Ride Hitch with Kingpin, Does Not Include Pin Box Bolts, Pin Box for 5th Wheel Camper |
| Item Weight | 123.5 pounds |
| Manufacturer | Shocker Hitch |
| Part Number | SH-800-KP-SH-GPB-Plates-X |
| Manufacturer Warranty Description | Shocker Hitch Guarantee & 1 Year Warranty Policy. This Product Does Not Void Your Camper Warranty. The Magnuson-Moss Act 15 U.S.C. § 2302(c) prohibits companies who provide warranties for their products from disclaiming the warranty when a consumer uses a different company’s product in connection wi |
| Model Number | SH-800-KP-SH-GPB-Plates-X |
Listed on Amazon as: Shocker Quick Air Ride 5th Wheel Pin Box with Kingpin, Fits Lippert 1116 0115 FabEx500 503 520 530 560 RBW7028-24,000 lbs GTW
View on Amazon#4 · 1621 Replacement
4. CURT L05 Air Ride 21K
- Weight: 170 lb
- Compatible with Vehicle Type: Truck, SUV
Best for: Lippert 1621 air-ride fit.
Why it ranks #4: This 21,000-pound air-ride pin box explicitly replaces the Lippert 1621 pin box and uses an internal airbag with a built-in strut.
A built-in airbag and strut give this 21,000-pound Trailair pin box a two-part air-ride system aimed at reducing road shock, vibration, and chucking. Its specific replacement fit is Lippert 1621, making it a focused option for buyers whose existing pin box uses that pattern.
The internal airbag and built-in strut connect the product’s air-ride construction to its stated goal of reducing road shock, vibration, and chucking during towing. At 21,000 pounds, its rating sets the load boundary for consideration. The listed Lippert 1621 replacement fit helps narrow compatibility, rather than suggesting universal interchangeability; buyers should also account for the 170-pound item weight when planning handling and installation.
- 21,000-pound capacity
- Replaces Lippert 1621 pin box
- Internal airbag
- Built-in strut targets road shock and chucking
- The listed replacement fit is Lippert 1621 only.
Skip it if you need a listed 1116 replacement; Lippert Components 155943 replaces LCI 1116 and several other listed patterns.
Choose this Trailair Air Ride for a Lippert 1621 setup rated within 21,000 pounds when reducing road shock and chucking is the priority. Its stated fit is specific, not universal.
Full product details
| Brand | Lippert Components |
|---|---|
| Compatible with Vehicle Type | Truck, SUV |
| Included Components | Pin Box |
| Item Weight | 170 pounds |
| Manufacturer | Lippert Components |
| Part Number | 158778 |
| Manufacturer Warranty Description | 90 day |
| Material | Alloy Steel |
| Model Number | 158778 |
| Style | Modern |
| Style Name | Modern |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer – www.P65Warnings.ca.gov |
#5 · Gooseneck Setup
5. REESE 94920 Goose Box
- Weight: 220 lb
- Compatible with Vehicle Type: Trailer, Truck
Best for: Gooseneck-ball towing conversion.
Why it ranks #5: Its 20,000-pound capacity, airbag, dual shocks, and rubber springs suit buyers replacing a compatible pin box for gooseneck-ball towing.
A 20,000-pound capacity paired with a gooseneck-ball connection lets this Reese Goose Box replace a conventional fifth-wheel hitch for compatible trailers. Its air ride system combines an easy-to-fill airbag, dual shocks, and rubber springs inside the box, giving buyers several listed elements intended to soften the towing experience.
The Goose Box replaces the trailer’s pin box and connects to a gooseneck ball, so the towing setup can avoid a separate fifth-wheel hitch. Its 20,000-pound capacity gives it a defined ceiling for heavy trailer applications, while the easy-to-fill airbag, dual shocks, and rubber springs provide the air ride components that address comfort. Compatibility is specified for Lippert 1621, 1716, 0719, and Rhino, plus Fabex PB 600 Series, making those patterns central to the fit decision.
- 20,000-pound maximum capacity
- Connects to a gooseneck ball
- Air ride includes an easy-to-fill airbag
- Dual shocks and rubber springs are integrated
- Compatibility is limited to the listed Lippert and Fabex patterns.
Skip it if you have a Lippert 1116 or FabEx 500-series pin box; Shocker Hitch Quick Air Ride lists those fits instead.
Choose this Reese for a compatible fifth-wheel trailer when replacing a fifth-wheel hitch with a gooseneck-ball setup matters. Its 20,000-pound capacity and listed pin-box patterns define the key limits to check.
Full product details
| Brand | REESE |
|---|---|
| Compatible with Vehicle Type | Trailer, Truck |
| Included Components | 94920 |
| Item Weight | 220 pounds |
| Manufacturer | Reese |
| Part Number | 94920 |
| Manufacturer Warranty Description | Lifetime |
| Material | Alloy Steel |
| Model Number | 94920 |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: This product can expose you to chemicals including styrene which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov |
Listed on Amazon as: Reese 94920 Goose Box 5th Wheel Pin Box, Air Ride 20,000 lbs. Capacity, Fits Lippert (1621, 1716, 0719, Rhino), Fabex PB 600 Series
View on Amazon#6
6. Lippert CURT L05 Flex Air 18K
- Weight: 105.23 kg
- Compatible with Vehicle Type: Trailer
Best for: 18,000-pound Flex Air setup.
Why it ranks #6: This Flex Air model combines an air bag and rubberized buffer to reduce jarring, but its 18,000-pound rating is the lowest among these options.
An 18,000-pound rating sets this long-jaw Flex Air pin box apart from higher-capacity models, while its integrated air bag and rubberized compound buffer road shock. Its pivoting-head design also targets chucking and vertical tug-of-war, connecting the ride-control features to motion between trailer and tow vehicle.
The integrated air bag acts as a buffer between tow vehicle and coach to absorb road shock and vibration, while the rubberized compound adds protection against jarring motion. The pivoting head helps reduce chucking and vertical tug-of-war, addressing movement along with impact. Its 18,000-pound load capacity and long-jaw style are key boundaries for matching a trailer setup; the stated features support a more comfortable ride without implying universal fit.
- 18,000-pound load capacity
- Integrated air bag absorbs road shock and vibration
- Rubberized compound buffers jarring motion
- Pivoting head targets chucking and vertical tug-of-war
- Its capacity is limited to 18,000 pounds.
Skip it if your trailer exceeds 18,000 pounds; Lippert Components L05 Flex Air Pin Box 21,000 lbs lists a higher capacity.
Choose this long-jaw Flex Air for an application within its 18,000-pound rating when air-bag cushioning and pivoting-head motion control matter. Its capacity and jaw style are the relevant fit boundaries.
Full product details
| Brand | Lippert Components |
|---|---|
| Color | Black |
| Compatible with Vehicle Type | Trailer |
| Included Components | Pin Box |
| Item Dimensions | 42 x 16.25 x 19.5 inches |
| Item Weight | 105.23 kg |
| Load Capacity | 18 ,000 lbs |
| Manufacturer | Lippert Components |
| Part Number | 328492 |
| Manufacturer Warranty Description | 1 Year |
| Material | Alloy Steel |
| Model Number | 328492 |
| Style Name | Long Jaw |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
#7
7. Lippert 2020 Air Ride
- Weight: 155 lb
Best for: Rhino Box replacement.
Why it ranks #7: It offers an internal airbag and built-in strut, but the listing says it is only compatible with Rhino Box pin-box designs.
Rhino Box compatibility is the defining fit detail of this Lippert Air Ride pin box, which uses an internal airbag and built-in strut to absorb shock and vibration. Bolt-on installation with no assembly required gives buyers a straightforward stated installation approach, provided their existing pin box is a Rhino design.
The internal airbag and built-in strut are intended to absorb road shock and vibration, linking the air-ride mechanism to a more buffered tow. Bolt-on installation with no assembly required can reduce assembly steps during replacement. Steel construction and a black powder coat finish are specified as protection against rust. The crucial boundary is explicit: replacement compatibility is only for Rhino Box pin-box designs, so this model is not a general-fit option.
- Internal airbag absorbs shock and vibration
- Built-in strut complements the airbag
- Bolt-on installation requires no assembly
- Steel with black powder coat finish
- Replacement compatibility is limited to Rhino Box designs.
Skip it if you have a Lippert 1116 pin box; Lippert Components 155943 lists 1116 among its replacement fits.
Choose this Lippert when replacing a Rhino Box pin box and seeking a bolt-on air-ride unit with no assembly required. Rhino-only compatibility is the deciding fit boundary.
Full product details
| Brand | Lippert Components |
|---|---|
| Item Weight | 155 pounds |
| Item model number | 807710 |
| Manufacturer | Lippert |
| Part Number | 807710 |
| Model | 807710 |
| Dimensions | 36 x 18 x 15 inches |
Listed on Amazon as: LIPPERT COMP PINBOX 2020 AIRRIDE W/HDWR KIT
View on AmazonAvoid pin-box fitment mismatches
A pin-box mismatch can make an otherwise capable air-ride unit unsuitable for installation, so identify the trailer’s exact pattern before comparing comfort features. The listings illustrate why broad labels are not enough: the CURT Lippert Components M19 Air Ride explicitly replaces several LCI patterns, including 1621, 1716, 0719, and 1116, while the CURT L05 Air Ride 21K names the 1621 pattern. The Lippert 2020 Air Ride is narrower still; its listing says replacement is only compatible with Rhino Box designs.
The Shocker Quick Air Ride Pin Box lists several Lippert, Fabex, and RBW patterns, but specifically excludes 1716 and M19 Rota-Flex. Match the model or mounting pattern on your existing pin box against the replacement listing, and confirm details with the manufacturer or dealer when the marking is unclear.
Capacity alone does not establish interchangeability.
Separate pin-box replacements from hitch conversions
Not every product here connects to the tow vehicle in the same way, so check the hitch arrangement as well as the trailer mounting pattern. The REESE 94920 Goose Box is designed for towing with a gooseneck ball and is described as a replacement pin box; it uses an airbag, dual shocks, and rubber springs. The Shocker Quick Air Ride Pin Box package includes a replacement pin box and an air hitch with kingpin, and its listing says it works with a bed fifth-wheel hitch.
Those configurations are not interchangeable assumptions: a buyer switching between a gooseneck-ball setup and a conventional bed-mounted fifth-wheel hitch needs to verify the complete system, not just the pin-box rating. The remaining options are presented as air-ride fifth-wheel pin boxes, but buyers should still confirm their truck hitch, trailer pattern, and installation requirements before purchase.
How to Choose an Air-Ride Fifth-Wheel Pin Box
Match the mounting pattern
Look for an explicit match to your existing pin-box pattern before weighing other features. The CURT Lippert Components M19 Air Ride lists replacement fit for LCI 1621, 1716, 0719, and 1116 patterns, while the CURT L05 Air Ride 21K specifies Lippert The Lippert 2020 Air Ride is restricted to Rhino Box designs; the Shocker Quick Air Ride Pin Box lists multiple Lippert, Fabex, and RBW patterns but excludes 1716 and M19 Rota-Flex.
This range favours the M19 for buyers whose trailer uses one of its named patterns. Rhino Box owners should focus on the 2020 model, and anyone without a confirmed match should verify before ordering rather than infer compatibility from brand or capacity.
Choose capacity for your trailer
Choose a listed capacity that meets your trailer’s requirements, and confirm the relevant rating for your specific setup before buying. These products range from the Lippert CURT L05 Flex Air 18K at 18,000 pounds to the Shocker Quick Air Ride Pin Box at 24,000 pounds GTW. Other listed figures include 20,000 pounds for the REESE 94920 Goose Box and 21,000 pounds for the CURT L05 Air Ride 21K and CURT Lippert Components M19 Air Ride.
The 18,000-pound option may suit a compatible setup within that rating; buyers needing more listed capacity can compare the 20,000-, 21,000-, and 24,000-pound choices. Do not treat a higher number as proof of fit or as a substitute for checking trailer, pin-box, and hitch limits.
Compare suspension features and setup
Look for suspension components that address the kind of motion you want to manage, and check what the listing actually includes. The Lippert L05 Flex Air 21K combines an air bag, oil shock for rebound, rubberized compound, and pivoting head. By comparison, the CURT L05 Air Ride 21K lists an internal airbag and built-in strut, while the REESE 94920 Goose Box uses an airbag, dual shocks, and rubber springs.
The Shocker package includes an air hitch with kingpin, but does not include pin-box bolts. Buyers prioritizing several listed motion-control elements can favour the Flex Air design; buyers seeking the stated gooseneck-ball arrangement can consider the REESE.
Confirm installation hardware, air-pressure instructions, and required adjustments with the product documentation, since those details are not consistently provided here.
Which Air-Ride Pin Box Should You Choose?
Choose the Lippert L05 Flex Air 21,000 lbs if your trailer fitment is confirmed and you want its combination of air bag, oil shock, rubberized compound, and pivoting head. If you need a specifically listed replacement for an LCI 1116 or another named pattern, the CURT Lippert M19 Air Ride offers the clearest broad-fitment details. For a listed 1621 replacement, consider the CURT L05 Air Ride 21K.
Buyers seeking a higher stated capacity and a package with an air hitch and kingpin can compare the Shocker Quick Air Ride Pin Box, while checking its pattern exclusions. Choose the REESE 94920 Goose Box for a compatible trailer in a gooseneck-ball setup.
Rhino Box owners can consider the Lippert 2020 Air Ride; buyers with requirements above 18,000 pounds should look beyond the Lippert CURT L05 Flex Air 18K.
Frequently Asked Questions
How do I identify the pin-box model and mounting pattern on my fifth-wheel trailer?
Check the pin box for a manufacturer label or stamped model number, then compare it with your trailer’s paperwork or ask the trailer manufacturer or dealer to confirm the pattern. Do not rely on appearance alone: a replacement must match the trailer’s mounting pattern and other fitment requirements before you order.
Do I need to adjust air pressure after installing an air-ride pin box, and how?
Follow the pin-box manufacturer’s instructions for setting and checking air pressure after installation. The correct setup can depend on the pin box and loaded trailer, so do not guess at a pressure value or use one from another model. Recheck the setup as directed if the trailer load changes.
Can an air-ride pin box solve chucking if my truck and trailer are not level?
No; an air-ride pin box may help manage fore-to-aft movement, but it does not correct an improper truck-and-trailer match or an unlevel towing setup. Check hitch height and trailer attitude, and consult your trailer or hitch manufacturer about adjustments. Confirm fitment and safe clearances before changing the setup.
Which options list a replacement pattern for an LCI 1116 pin box?
The CURT Lippert Components M19 Air Ride is explicitly listed as replacing an LCI 1116 pin box. The Shocker Quick Air Ride title also lists Lippert 1116 among its fits, though it includes pattern exclusions. Confirm the exact trailer pattern and all fitment requirements before choosing either option.
What is the stated distinction of the L05 Flex Air 21,000-pound pin box?
The L05 Flex Air combines an air bag with an oil shock to control rebound, plus a rubberized compound for additional buffering and a pivoting head designed to reduce fore-to-aft movement. Its listed capacity is 21,000 pounds, but the supplied information does not identify compatible mounting patterns, so verify fitment.
Final Words
Start by confirming your trailer’s pin-box pattern; capacity alone does not establish fit. With fitment confirmed, the Lippert L05 Flex Air 21,000 lbs is the all-around choice for its air bag, oil shock, rubberized compound, and pivoting head. For a listed 1116 replacement, consider the CURT M19; for 1621, the CURT L05 Air Ride 21K.
Match specialized setups and capacity needs to the listed details.
