Install: B&M Hi-Tek Nodular Iron Differential Cover 12310 - Dana 30YouTube Button

B&M Nodular Iron Front Differential Cover for Dana 30

1987-2018 Jeep Wrangler YJ, TJ, JK, and Cherokee with Dana 30 10-bolt differential.

PART# 12310

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$227.00   Suggested Retail
$203.95   Your Price
Estimated shipping date: 09/07/2020
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B&M's popular Hi-Tek line of racing products has this heavy-duty Nodular Iron differential cover specifically designed for serious off-road enthusiasts. This super tough differential cover is perfect for Jeep Wranglers, Cherokees and all applications with Dana 30 differentials. Features include a super durable black powder coated clear gloss finish with machined B&M logo, reinforcing ribs to help strengthen the cover and give it rugged good looks. Other features include a magnetic drain plug, a fill port with an o-ringed magnetic dipstick with "easy-grip" checkering for a sure grip when checking fluid levels whether on the trail, in the shop or at home. All hardware and installation instructions are included and covered by our Lifetime Limited Warranty. Note: Gasket not included


  • Finned for Strength and Improved Heat Transfer
  • Includes Magnetic Dipstick to Check Fluid Level
  • Includes Stainless Steel Mounting Hardware
  • Low Profile Design for Tight Fit Applications
  • Fill Plug and Drain Plug for Easy Servicing
  • Super Tough Nodular Iron Construction
  • Over 65 Years of B&M Quality
  • Black Powder Coated Finish
  • Lifetime Limited Warranty
  • Easy Installation


Bolt Count10
Bolt/Studs IncludedYes
Call Out Size (depth) (in)2.41
Carrier Main Cap SupportNo
Color/FinishBlack Powder Coat
Differential Cover Bolt PatternDana 30
Differential Thickness (in)2.713
Drain Plug IncludedYes
Emission Code5
Filler Plug IncludedYes
Gasket IncludedNo
MaterialNodular Iron
Product TypeDifferential Cover
California Proposition 65 Chemical NameChromium (hexavalent compounds)
California Proposition 65 RequiredYes
Part Number12310



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

In The Box

In The Box

  • Cover
  • Fill Cap/Dipstick
  • Drain Plug
  • Bolts
  • Washers
  • Instructions

Tech Resources

Designed to fit most Jeep Wranglers and other vehicles with a Dana 30 differential, however vehicles may have other interfering components that may require modifications or moving of existing brackets, require longer cover bolts or different cover bolts, clearance of sway bars etc. - Checking for adequate clearance and fitment for your application should be verified prior to purchase & installation. Refer to ID guide and measurement drawings for specifications.


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      *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

      Some parts are not legal for use in California or other states with similar regulations.

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