ilstein B6 4600 Series Shock Absorber — 24-186087
Rear monotube shock for stock-height Dodge/Ram 1500 Mega Cab, 2500, and 3500 2WD trucks.

Upgrade worn factory rear shocks with the Bilstein B6 4600 24-186087. This application-tuned monotube damper is a direct bolt-on replacement for stock-height RWD Rams. It tightens body control under load, reduces fade on long grades, and keeps everyday ride quality intact—without a lift kit or new springs.

Why it belongs on a stock-height Ram

Bilstein built the B6 4600 as a performance OE upgrade for light trucks and SUVs that stay at factory height. The 46 mm monotube body and high-pressure gas charge dump heat faster than a typical twin-tube shock, so damping stays consistent on hot pavement, washboard, or a loaded bed. A velocity-sensitive digressive piston firms up on big hits and stays compliant over small chatter. Each unit is valved for this specific rear application rather than a generic “truck” setting.

Key features

• Direct-fit rear shock for listed stock-height 2WD applications
• 46 mm monotube gas-pressure design for fade-resistant damping
• Velocity-sensitive digressive piston that reacts to changing road speed
• Application-specific valving for ride quality, handling, and load control
• Signature yellow painted body with blue straight dust boot
• Upper and lower 14.4 mm eye mounts — uses OEM hardware and springs
• Non-adjustable, non-reservoir, smooth-body construction
• Sold individually (two required per vehicle)
• Limited lifetime warranty

Specifications

• Part number: 24-186087
• Series: B6 4600
• Position: Rear (driver or passenger)
• Lift height: Stock / 0"
• Internal design: Monotube, gas pressure
• Body: 46 mm (2.0 in OD) smooth body
• Collapsed length: 16.96 in (430.8 mm)
• Extended length: 27.48 in (698.0 mm)
• Upper / lower mount: Eye 14.4 mm
• Reservoir: No
• Adjustable damping: No
• Spring seat: No
• Boot: Blue straight
• Finish: Yellow paint
• Weight: 5.38 lb
• UPC: 651860558073
• Origin: Mexico
• Warranty: Limited lifetime

Vehicle fitment

Confirm year, cab, drive, and axle before ordering. This shock is for rear, stock-height, 2WD / RWD applications:

• 2006–2008 Dodge Ram 1500 — Mega Cab / extended crew cab, RWD (Laramie, SLT, SXT as applicable)
• 2003–2012 Dodge / Ram 2500 — RWD
• 2003–2012 Dodge / Ram 3500 — RWD

Not for lifted trucks, most 4WD applications, or setups that need a different length or mount. Some 2500 listings specify “without solid front axle.” Always verify with a fitment tool or VIN.

Installation notes

Sold as a single shock. Replace rear shocks in pairs for even damping. Typical install is a bolt-on swap using existing mounts; estimated labor is about 0.5 hour per side for an experienced tech. No coil spring or spring seat is included because this is a non-coilover rear shock.

Common interchange numbers

AutoZone 930139 · Bilstein BE5-C605 / F4-BE5-C605-H0 · FOX 980-24-943 · Pro Comp 927543 · Rancho RS5269 / RS7269 / RS999269