• Special order – no change-of-mind returns
  • 12 month warranty
  • Fitting available

PDI Engine Internals Cylinder Heads

PDI | Big Boss Cummins X15 SOHC Stage 1 Cylinder Head

SKU PDI144071582341
  • Fits Argosy Argosy
  • Fits X15

Call for price

Call for price

This part is priced on request. Call or text us and we’ll give you a price and lead time.

Shipping calculated exactly at checkout
Pick up from our workshops291 Cliveden Ave, Oxley (Brisbane) or 29 Production Ave, Warana (Sunshine Coast). Monday to Friday, 8am to 5pm.
Special order – no change-of-mind returnsThis is a special order, so it can't be returned for change of mind. Your rights for faulty goods under the Australian Consumer Law still apply. Returns policy

Will it fit your vehicle?

MakeModelSeriesYearsEngine
FreightlinerArgosyArgosy (2nd gen)2012 – 2020X15

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

Available for: 2010-2025 Cummins ISX and X15 Engines Key Benefits High Nickel Casting Inconel Exhaust and Intake Valves Stainless Retaining Clips Made in the USA   Warranty: 2 Year Unlimited Mileage PDI Big Boss Cummins ISX/X15…

Description

PDI | Big Boss Cummins X15 SOHC Stage 1 Cylinder Head

Please contact us for product pricing.

Available for: 2010-2025 Cummins ISX and X15 Engines

Key Benefits

  • High Nickel Casting
  • Inconel Exhaust and Intake Valves
  • Stainless Retaining Clips
  • Made in the USA

 

Warranty: 2 Year Unlimited Mileage

PDI Big Boss Cummins ISX/X15 Stage 1 Cylinder heads are meticulously designed to surpass the most demanding expectations, making them the perfect choice for heavy-duty applications in trucking, construction, agriculture, and more.

They exemplify our unwavering dedication to innovation and superior quality.

Each Stage 1 Cylinder Head is built with all Inconel valves, known for their exceptional strength and resistance to extreme temperatures, ensuring unparalleled durability and performance.

Specifications

BrandPDI
SKUPDI144071582341
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.

PDI | Big Boss Cummins X15 SOHC Stage 1 Cylinder Head Please contact us for product pricing.