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FSD26 IS LIVE: Every $1 spent = 150 entries to win a 2024 F-350 Limited + $20,000 cash.
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Sinister Diesel

Sinister Diesel 13-20 Ram 2500/3500 6.7L Cummins Bypass Oil Filter System

4.7 store rating · 572 reviews
SKU: SINSD-EOF-6.7C-13

Fits 2013–2018 Ram 2500 / 3500 · 6.7L Cummins

All 20 applications
$475.99
Ask us about availability. Call or text 908-223-9744 and we will get it or find you the right alternative.
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This purchase enters you to win FSD26, a 2024 F-350 Limited and $20,000 cash. See the truck · No purchase necessary
  • Authorized dealerGenuine Sinister Diesel parts, sourced direct
  • 30-day returnsSee the return policy
  • Diesel techs on the line908-223-9744, call or text
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The oil system in your engine is crucial to the trucks performance and life. Keeping your oil clean is what it all comes down to and this 6.7L Cummins Oil Bypass Kit from Sinister Diesel is designed to do that better than your factory oil system. The Sinister Diesel 6.7L Cummins Oil Bypass Kit combines the best available oil filter element on the market with our specially designed parts to remove more contaminants from your oil than any other filter on the market, providing you with the peace of mind that your engine is protected. Features: Construction - Steel and Billet Aluminum, Product Design - Fully CNC Machined, Performance Notes - Improved oil filtration;Includes:(1) Amsoil 2 Micron Oil Filter, (1) Sinister Oil Cap, (1) Sinister Diesel Filter Block, Braided Stainless Lines, Mounting Bracket, Installation HardwareNote: Will NOT work with Dual Alternators, Note: Will NOT work with Dual Radiators., FAQ's Q: What kind of finish is on this part?, A: This product is finished in Sinister Blue for a clean and stylish appearance., Q: Can I use Extended Life Oil Filters with this product? , A: No, they are not compatible. You must use an OEM style filter.

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Good to know

Questions, answered straight.

If it is not here, call or text the counter. Real people, real answers.

Fitment

  • Will this fit my truck?

    The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.

  • What if I order the wrong part?

    Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.

Shipping

  • When will it ship?

    In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.

  • Why did I only get part of my order?

    We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.

Returns and warranty

  • What is the return policy?

    30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.

  • How do warranty claims work?

    We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.

Paying

  • Can I pay over time?

    Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.

  • What is a core deposit?

    Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.

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Why buy here

A diesel shop that sells parts, not a website that sells boxes.

Every part on this site is one our own techs can stand behind.

  • We run what we sell

    A working diesel repair and fabrication shop in Nazareth, PA. These are the parts our techs install every week.

  • Real techs on the phone

    Call or text 908-223-9744 and you get a diesel tech, not a script.

  • Authorized dealer

    Genuine parts straight from the manufacturer, with the factory warranty behind them.

  • Fast from stock

    Most in-stock parts ship in 1 to 2 business days from warehouses across the USA.

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  • 7+ Years in business
  • 6+ Shop technicians
  • 30,000+ In-stock SKUs
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FSD shop interior - trucks on lifts The shop floor, Nazareth, PA

Full Send Diesel, Nazareth, PA

A team of diesel people, not a call center.

Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.

Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.

Call 908-223-9744 Text us Email

Mon–Fri, 8am–4pm ET. After hours, text or email and we answer first thing in the morning.

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