C.T.I Black Diamond 31-925-03 Piston Rings For 2017-2024 Ford F-150 3.5L D35 EcoBoost V6 2nd Gen

C.T.I. Black Diamond 31-925-03 Piston Rings For 2017-2024 For F-150 3.5L D35 EcoBoost V6 2nd Gen

Brand: C.T.I. | Part Number: 31-925-03/D | Bore: 92.5mm (STD)

Ensure a precision seal and restore engine performance with this C.T.I. 31-925-03 Piston Ring Set. Specifically engineered for the 2nd Generation 3.5L EcoBoost V6 engines, these rings meet rigorous ISO 9001 and IATF 16949 quality standards, providing a reliable direct replacement for OEM components.

Product Specifications

• Condition: Brand New
• Coating: Chrome Plated
• Engine: 3.5L Twin-Turbocharged EcoBoost V6 / 3.5L Duratec 35 D35 Ford Cyclone [2nd Gen]
• VIN Codes: T, G
• Certifications: ISO 9001 & IATF 16949

Detailed Ring Dimensions

Performance DLC Advantage
DLC (Diamond-Like Carbon) coated piston rings deliver superior performance:

Ultra-high hardness: HV0.05 > 2800

Extremely low friction: < 0.04

Reduces internal friction & wear

Improves sealing efficiency

Helps lower fuel consumption

Extends piston ring service life

*Ideal for high-performance builds and long-term reliability.

Note: Please confirm your engine code, VIN, and bore size requirements before purchase. Refer to listing photos for exact parts included.

Vehicle Fitment

This set fits an extensive range of Ford / Lincoln vehicles from 2017-2024, including:

• Ford: Expedition, F-150
• Lincoln: Navigator 

What’s Included

• (1) Full C.T.I. 31-925-03/D Piston Ring Set

Shipping & Returns

• Fast Shipping: Ships same business day via USPS or best available carrier.
• Warranty: 1-Year Warranty (covers manufacturing defects only).
• Returns: 30-Day Returns. Item must be unused and in original packaging.
• Important: Physical damage must be reported within 48 hours of delivery.

Buyer Responsibility

The buyer is responsible for verifying correct fitment.

Unsure about compatibility? Message us with your VIN before ordering and our team will help you verify the fit!