G2 Axle & Gear Hammer M186/Dana 30 Advantek Front Differential Cover (Gray) - 40-2150G

universal fit logo


  • G2 Axle and Gear | Part Number: G/240-2150G
  • Popular Axle Manufacture:Dana
  • Axle Location:Front
  • Fitment:Universal Fit
  • Finish Type:Powder Coated
  • Type Of Material:Iron
  • Axle Type:M186/Dana 30 Advantek
  • Availability:In Stock
  • Oil Capacity:Extra Capacity


G2 is pleased to introduce the new HAMMER differential covers for the front Dana 30, Dana 35 and Dana 44 axles for the Jeep JL Wrangler and JT Gladiator. OEM differential covers are often made of thin stamped metal that is vulnerable on the trail. Hit a rock or other obstacle and they can bend or puncture. Once that happens, differential fluid can easily leak out leaving you stranded on the trail. The new G2 HAMMER is a tough and durable differential cover for the Jeep JL Wrangler and JT Gladiator that prevents this from happening.

Hammer M186 Iron differential covers are designed to protect from potential damage to the gears, locker and carrier bearings, not to mention a difficult, messy trail fix. Even more common, though less catastrophic, is "peel back" that can occur when sliding over a rock causes the lip of the cover to peel up, allowing your gear oil to drain causing a hazard for both your Jeep and the environment.

Manufactured from highly ductile nodular iron the same material drag racing differential housings are cast from to handle thousands of horsepower. The design of the Hammer M186 Iron differential cover incorporates pockets to protect the diff cover bolt heads from trail damage, while the profile of the diff cover acts as a ramp to help slide your Jeep up and over the most troublesome obstacles. The ramp profile also results in an extremely thick & up to 1" thick cross-section around the bolt ring, where contact with the rocks is most likely. Throughout the rest of its cross-section the Hammer M186 Iron differential cover is the thickest cast differential cover on the market, from 7/16" to a brutal 1/2" thick at the outermost surface.

Customer Reviews

5.0 5.0
2 Customer ratings

Customer Images

5.0 Protects our jeep diff perfectly

This thing is a beast, not thin garbage, it's a solid diff cover, for perfectly and was easy to install ! We enjoy off reading and needed to protect the front diff from rocks and this cover is prefect.

5.0 Axle covers

Clean look and purchased both front and rear at a decent price! Thanks 4 Wheel Parts!

from Houston Texas |


Question & Answers

2 Answered questions

Q: Will this fit a Jeep JK Dana 30?  Answer this question

A: 18-Current Wrangler JL, 2 & 4 Door (M186 front and Dana 30 Advantek front axles)

Answered by Dave from 4WP HQ on 11/12/2021

Q: Will this cover hold more gear oil then the stock one ? I'm new to the jeep world , will it fit my 2004 jeep wrangler ? Answer this question


G2 Axle & Gear uses the strongest and latest generation materials to manufacture products capable of handling heavy loads. When it comes to axle assemblies, core lockers, driveshafts and sway bars, G2 is the first name in durability and reliability. Off-roading can heap punishment on a Jeep and G2's laser-cut components offer superior handling on challenging terrain and on-road drives. Parts are easy to install and easy to service and above all, they remain operational in adverse environments. Shop G2 Axle and Gear Now


Sign up to receive deals by email!

Sign up to receive deals by text!

Please Enter valid number

By submitting, you agree to receive recurring autodialed marketing text msgs (e.g. cart reminders) to the mobile number used at opt-in from 4 Wheel Parts (4WP) on 21208. Consent is not a condition of purchase. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy