The Monroe® Gas-Magnum® Rear Suspension Shock Absorber is designed for midsize and full-size trucks and vans, delivering firm control without a harsh ride. With up to twice the fluid capacity of standard 1-in. bore shocks, Gas-Magnum shocks work more efficiently with less effort.

Built for hardworking full-size Ford trucks, the Gas-Magnum delivers reliable rear suspension performance for 1997-2004 Ford F-150 models with consistent, controlled damping and long-lasting durability.

• DESIGNED FOR TRUCKS AND VANS: Engineered for full-size trucks and vans with full-displaced valving on compression cycles for controlled ride and handling.
• BUILT TO LAST: Heavy-duty nitrocarburized rod (non-dust shield units only) and sintered iron piston enhance durability; self-lubricating fluid seal reduces friction and wear.
• CONSISTENT RIDE: OE all-weather fluid with special modifiers handles extreme temperatures and ensures smooth rod reaction.
• IMPROVES PERFORMANCE: Nitrogen gas-charge maintains tire-to-road contact by reducing aeration and shock fade.
• LONGER SERVICE LIFE: Larger bore and 2-in. reserve tube hold more oil for greater capacity and controlled ride over time.
• BUY WITH CONFIDENCE: Comes with Monroe's Limited Lifetime Warranty and exclusive Feel the Difference™ Guarantee.

Common Fits: Compatible with rear suspension on 1997-2003 Ford F-150 and 2004 Ford F-150 Heritage.

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Cross References:
Ford: 1L3Z18124AC, Ford: 1L3Z18124BA, Ford: 1L3Z18125AA, Ford: 2L3Z18124AA, Ford: 2L3Z18124BA, Ford: 2L3Z18124BB, Ford: 2L3Z18124CA, Ford: 2L3Z18124DA, Ford: 2L3Z18124EA, Ford: 2L3Z18124MA, Ford: 2L3Z18125AA, Ford: 2L3Z18125BA, Ford: 2L3Z18125BB, Ford: 2L3Z18125CA, Ford: 2L3Z18125EA, Ford: 2L3Z18125FA, Ford: 2L3Z18125GA, Ford: 2L3Z18125HA, Ford: 2L3Z18125KA, Ford: 3L3Z18124AA, Ford: 3L3Z18125AA, Ford: 3U2Z18124BB, Ford: 3U2Z18124BM, Ford: 3U2Z18124DAA, Ford: 3U2Z18124QAA, Ford: 3U2Z18124RAA, Ford: 5U2Z18V125AD, Ford: F65Z18124EB, Ford: F65Z18124FB, Ford: F65Z18124GA, Ford: F65Z18124HB, Ford: F65Z18124KA, Ford: F65Z18124KB, Ford: F65Z18125AB, Ford: F65Z18125BB, Ford: F65Z18125CB, Ford: F65Z18125DC, Ford: F75Z18125AG, Ford: F75Z18125AH, Ford: F75Z18125DC, Ford: F75Z18125HA, Ford: F75Z18125HC, Ford: F75Z18125PC, Ford: F85Z18124LA, Ford: XL3Z18124AA, Ford: XL3Z18124CA, Ford: XL3Z18125CA, Ford: YL3Z18124AA, Ford: YL3Z18124BA, Ford: YL3Z18124CA, Ford: YL3Z18124DA, Ford: YL3Z18125AA, Ford: YL3Z18125BA, Ford: YL3Z18125CA, Ford: YL3Z18125DA, Ford: YL3Z18125EA, KYB: 344375, Gabriel: 58715, NAPA Shocks: 76658, AL-KO Xtreme: 813045, Bulldog HD: HD12140875, Rancho: RS5234, Rancho: RS55234, KYB: 344616, KYB: 565009, KYB: KG54314, Rancho: 76658, Ford: 76658, Duralast: MS3431532B, NAPA Proformer: SH81913, MasterPro Shocks and Struts: FD115, Monroe Shocks & Struts: 32305, Monroe Shocks & Struts: 911134, Monroe Shocks & Struts: 37137, Monroe Shocks & Struts: 210229, Sensen: 12140192

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UPC:

048598050526

Mfr Part Number:

34658

Country of origin (CO):

CN

Color:

Yellow

Compressed Length:

16 (unece.unit.INH)

Cylinder Color:

Yellow

Cylinder Finish:

Painted

Dust Shield Included:

Yes

Dust Shield Material:

Metal

Extended Length:

27.5 (unece.unit.INH)

Gas Charged:

Yes

Grade Type:

Premium

Hydraulic Lockout:

No

Includes Bump Stop:

No

Internal Rebound Bumper:

No

Lower Mount Code:

LS26

Lower Mount Type:

Loop (Eyelet) Bushing and Sleeve

Mounting Hardware Included:

Yes

Shock Absorber Body End Measuring Point:

Center of Loop

Shock Absorber Rod End Measuring Point:

Base of Stem

Travel Length:

11.5 (unece.unit.INH)

Upper Mount Code:

S4

Lower Mount Code48:

LS26

Upper Mount Code74:

S4

Lower Mount Type49:

Loop Bushing and Sleeve Mount - 12MM Sleeve ID X 1.1/2" Sleeve OAL

Parts Pack(s):

P01136

Upper Mount Type75:

Stem Mount - 2.3/8" Stem Length X 3/8"-16 Thread Pitch