Rare Cosworth-Cast Turbocharger Assembly (DM5306 • RHR) Condition: Used – Historic race component (see detailed notes) * * *Local Pick Up Preferred * * *
Open To Reasonable Offers Provenance (How This Was Acquired)
This turbocharger was purchased from a Haas / Newman estate race program source. Pallets that I purchased are a mixture of Granatelli Racing / Newman Haas. I was advised that many components within this estate inventory were associated with Lola chassis and related race programs (including T900/T800-era and other Lola-related parts). Due to the historic nature of the inventory and the age of the hardware, I am listing this item with transparent condition notes and an open verification request for knowledgeable buyers. This turbo is from the 80\'s so its hard to really find any real documentation on it. The only thing I do know is that it was from a known professional racing program and only a handful of these Cosworth turbos were ever made.
Item Overview
- Item: Turbocharger assembly (housings / cartridge as shown)
- Markings observed: COSWORTH, DM5306, RHR (see photos)
- Included: Exactly what is pictured — no additional lines, fittings, or documentation unless stated
- Category: Historic motorsport component / collector part
Condition (Detailed & Honest)
- Cartridge: Spins freely by hand and does not contact the compressor or turbine housings during free-spin (no walling/rubbing observed).
- Compressor wheel (intake side): Visible blade/chip damage (see photos).
- Turbine wheel (exhaust side): No comparable blade/chip damage observed on the exhaust side (see photos).
- Exhaust housing markings: Service / repair indicators present suggesting the unit saw active race-program maintenance or component replacement.
- Testing: Not bench-tested / not flow-tested. Any functional use would require professional inspection and likely rebuild due to compressor wheel damage.
This is sold primarily as a historic motorsport component. Please review photos carefully and ask questions before purchase.
Application / Fitment (Presented as Possible, Not Guaranteed) Most likely program families (buyer verification encouraged)
- Indy / CART-era Cosworth turbo program (DFX-related Lola programs also align with Haas/Newman inventory context)
I will not state a single definitive engine application without documentation tying DM5306 directly to a specific engine/chassis.
Local Pick Up / Sale Terms
- What you see is what you get: exactly the item shown in photos
- Open to Reasonable Offers
- Local pickup welcome
(I have pallets of Newman/Haas related race program components on hand) - Please ask all questions before arranging a meet-up. I have a box of compressor wheels, I can give you a turbine wheel along with the sale if you want to rebuild this unit.
Search keywords: Cosworth turbocharger, DM5306, RHR, Haas Newman, Newman/Haas, Lola T800, Lola T900, Lola race program, IndyCar turbo, CART turbo, F1 turbo era, historic motorsport parts, collector turbo.
