Peak Performance Coolant

Brand: Peak | Part #OIL-B5C6A8

Category: Oil & Fluids > Coolant

The Peak Performance Coolant (P/N OIL-B5C6A8) is a direct-fit Coolant for the vehicles listed in the fitment section. Compatible with most factory-fill chemistries — top-off and full drain-and-refill use cases both supported. Sourced from Peak, a recognized supplier in the aftermarket auto parts channel. Part number OIL-B5C6A8 is the manufacturer reference — match it against your old part or VIN-based lookup to confirm you have the right unit. Confirmed fitment on 2005–2009 GMC including Yukon, Sierra HD. Use the year/make/model selector above to verify your exact configuration before checkout. Same- or next-business-day handling on in-stock orders. Free US shipping over $75 — no surprise oversized fees on this item. Backed by a 90-day return window — if the part doesn't fit or the wrong unit was shipped, send it back for a full refund.

Price: $47.99 | In stock — ships within 1-2 business days. Free shipping on orders over $75.