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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Bilstein 24-186636 B8 5100 Series Shock AbsorberBilstein 5100 Series Shock Absorbers 24 186636 are high gas pressure monotube shocks expertly designed to be installed onto lifted pickups, SUVs and Jeeps. The shocks feature a 46mm digressive piston with an innovative self adjusting deflective disc valving. They offer super damping ability that makes them perfect for heavy hauling or occasional off road use, while maintaining an exceptional street ride. Specifications: Part Number: 24 186636 Old Part
Bilstein 5100 Series Shock Absorbers 24-186636 are high gas pressure monotube shocks expertly designed to be installed onto lifted pickups, SUVs and Jeeps. The shocks feature a 46mm digressive piston with an innovative self-adjusting deflective disc valving. They offer super damping ability that makes them perfect for heavy hauling or occasional off-road use, while maintaining an exceptional street ride.
Specifications:
Part Number: 24-186636
Old Part Number: F4-BE5-B514-H0
Setting: 5100 Series
Drive Type: 4WD
Position: Rear
Descriptor: Rear Lifted Height: 4" GM / 2" Dodge
Quantity Needed Per Vehicle: 2 (Sold Separately)
Finish: Zinc plated
Reservoir: No
Body Design: 46mm ID smooth body (Non-coilover)
Measurements:
Collapsed Length (IN): 18.17
Extended Length (IN): 29.92
Collapsed Length (MM): 461.5
Extended Length (MM): 760
Applications:
2003-2012 Ram 3500 4WD - Rear Lifted 2"
2003-2013 Ram 2500 4WD - Rear Lifted 2"
2014-2018 GM 1500 Gas 4WD - Rear Lifted 7-9"
1999-2010 GM 2500/3500HD 4WD - Rear Lifted 4" (NON-Quadrasteer)
Note: *Lift Height is suggested by mfg. Due to the many different aftermarket suspension systems it is recommended that a measurement is taken for proper application. An eye to eye shock is measured from the center of one eyelet to the center of the other eyelet. Shock Absorbers sold individually.
WARRANTY INFO:
Limited Lifetime
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 199 reviews
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Product Reviews
★★★★★ 5
For motorcycles
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Great stuff, good price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
★★★★★ 5
The best lower unit gear oil I have used
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
I have been boating my whole life, this is by far the best gear oil. I use this in my Johnson 115 even though this is technically made by Mercury. I seem to get less if any water intrusion into my gearcase with this oil. If there is any, the oil emulsifies the water and continues to protect the gears. I have had better luck with this than Pennzoil marine or others. Highly recommend. It is a blue color and easy to drain and fill.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Great
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Great lube for the boat
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
recommend
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
great price
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Reviewed in the United States on May 22, 2026
★★★★★ 4
Does not come with a pump.
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
The Good: Changing the fluid in the lower unit is a very easy DIY job. This can save you hundreds of dollars each year by doing it yourself.
The Bad: You need a special pump to change the oil, and sometimes it comes with the gear lube. Unfortunately this product did not come with it. Luckily my neighbor had an extra one from changing the lube a different boat laying around and was able to use that.
The Ugly: If you have to go get the pump, that could cost a few extra dollar but is just an extra nuisance. The pumps are interchangable but you just need to clean it between uses (DON'T MIX DIFFERENT OIL BRANDS)
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Reviewed in the United States on October 28, 2025