Will the B8 5100 fit a 2015 Ram 1500 4WD?

The listed fitment covers mostly RWD trims, so confirm your drivetrain and trim against the part number before buying. The shock is a front unit for 0-1.75 in. of lift.

Can I put the 4600 Series on the front of my Ram 3500?

No. This part is a rear shock for 2013-2018 Ram 3500 4WD. Bilstein sells separate front 4600 part numbers.

Both are 46mm monotube Bilsteins with similar construction, so life depends on load and roads. The 4600 on a stock 3500 and the 5100 on a lightly lifted 1500 are both known to hold up well past 50,000 miles.

Is the 5100 worth the extra $19?

Only if you drive a 1500 and want the lift and leveling. If you need a stock rear shock for a 3500, the 4600 at $104.00 is the right part and the cheaper one.

Do I need to buy two?

Yes. Shocks are sold individually, so replace both fronts or both rears as a pair. Two 4600s run about $208 at the XDP price.

Will the 5100 level my truck?

It can. The snap-ring grooves let you raise the front up to about 3 in. with OE springs depending on application, which reduces the factory rake.

Front Shock Absorber - Compatible with 2011 - 2018 Ram 1500 2012 2013 2014 2015 2016 2017 vs Bilstein 09-18 Ram 1500 4WD B6 4600 Front Shock Absorber

These are not interchangeable parts, so the real choice is which truck you own. The B8 5100 is a front shock for 2011-2018 Ram 1500 with 0-1.75 in. of lift, priced at $122.95 at Walmart as of November 4, 2026. The 4600 Series is a stock-height rear shock for 2013-2018 Ram 3500 4WD, priced at $104.00 at XDP as of November 4, 2026. Buy the one that matches your truck's position and ride height; price is secondary.

Today the Bilstein 09-18 Ram 1500 4WD B6 4600 Front Shock Absorber costs $18.95 less at its best price.

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