Engine rebuilds in-house

We rebuild engines at our Oxley and Warana workshops. Ask us for a price on the full job.

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  • Returns within 30 days
  • 12 month warranty
  • Fitting available

Double Duty Diesel Engine Internals Gaskets & Seals

Cummins 4BT / 6BT Front Oil Seal Kit

SKU 3900709
  • Fits Cummins 1st Gen (1989-1993)
  • Fits Cummins 2nd Gen (1994-2002)
  • Fits 4BT
  • Fits 6BT

$66.00

Including GST

In stock. Order before 11am AEST for same-day dispatch
Shipping calculated exactly at checkout
Estimated delivery: 1-7 business daysMetro QLD, NSW, ACT and VIC.
Pick up from our workshops291 Cliveden Ave, Oxley (Brisbane) or 29 Production Ave, Warana (Sunshine Coast). Monday to Friday, 8am to 5pm.
Returns within 30 daysUnused and uninstalled, in the original packaging, with a return authorisation from us first. A 15% restocking fee applies and return postage is at your cost. Your Australian Consumer Law rights are not affected. Returns policy
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Willys Workshop · Oxley & Warana, QLD

or 4 interest-free payments of $16.50 with Afterpay

Will it fit your vehicle?

MakeModelSeriesYearsEngine
————4BT
————6BT
Dodge / RamCummins 1st Gen (1989-1993)—1989 – 19936BT
Dodge / RamCummins 2nd Gen (1994-2002)—1994 – mid-19986BT

A dash means the listing does not narrow it down that far (for example no build dates are listed). Check with us if your vehicle was built near a model change.

Years are as listed by the manufacturer/supplier and may be US model years for US-built trucks.

Fitment listings are a guide. Not sure? Send us your rego or VIN and our team will check the part for your vehicle, before or after you order.

Check my fitmentor call(07) 5619 7869or text0485 885 957oremail us

Cummins 4BT / 6BT Front Oil Seal Kit If you find your front seal is leaking oil, this is for you! Kit Includes: 1 x Front Oil Seal Kit Plastic Install Sleeve Please Note: This oil seal can be used on a standard crank oil seal surface…

Description

Cummins 4BT / 6BT Front Oil Seal Kit

If you find your front seal is leaking oil, this is for you!

Kit Includes:
  • 1 x Front Oil Seal Kit
  • Plastic Install Sleeve
Please Note:
This oil seal can be used on a standard crank oil seal surface or with thin type of AFTERMARKET speedy sleeve, the CUMMINS wear sleeve is thicker and has an oil seal to suit, if you need oil seal to use with thicker speedy/wear sleeve check my other items for sale.

Specifications

Part number3900709
In the box1 x Front Oil Seal Kit; Plastic Install Sleeve
BrandDouble Duty Diesel
Shipping weight1.5 kg
Shipping dimensions25 × 20 × 12 cm

Warranty: 12 months from Willys Workshop

Sold and warranted by Willys Workshop. Parts carry our 12-month warranty against defects, from the date of purchase or installation (whichever is later), subject to any manufacturer terms and fair wear and tear (Terms & Conditions, clause 7.1(b)). This is in addition to your rights under the Australian Consumer Law, which cannot be excluded.

  • 30-day change-of-mind returns on eligible items: unused, uninstalled and in the original packaging, with a Return Authorisation from us first. A 15% restocking fee applies and return postage is at your cost.
  • Wrong fit: if a part covered by our Fitment Guarantee doesn’t fit, we pay the return freight both ways and there’s no restocking fee.
  • Special-order or imported-to-order items, electrical parts, ECUs and tuners once registered, connected or flashed, parts that have been fitted or modified, and clearance items can’t be returned for change of mind. Your rights for faulty goods still apply.
  • Refunds are made to your original payment method within 14 business days of us receiving and inspecting the return.

Full details: Returns & Refund Policy and Terms & Conditions.


Warranty claims are coordinated through Willys Workshop. Email sales@willysworkshop.com.au or call Warana (07) 5619 7869 / Oxley (07) 3377 3421 with your order number and a description of the issue.

Shipped Australia-Wide

  • Dispatched from within Australia with tracking.
  • Same-day dispatch on in-stock orders placed before 11am AEST, Monday–Friday.
  • Shipping is calculated at checkout based on size, weight and your delivery address.
  • Delivery usually takes 2–10 business days after dispatch, depending on your location.
  • Need your tracking number? Once your order has shipped, email sales@willysworkshop.com.au with your order number and we’ll send you the carrier and tracking details.

Freight question? Call us on (07) 5619 7869.

Cummins 4BT / 6BT Front Oil Seal Kit If you find your front seal is leaking oil, this is for you!