Black Diamond Piston Rings For 17-22 Ford F-150 3.5L Duratec 2nd Gen 31-925-03

Item Condition

• Brand New

• Brand: C.T.I.

• Coating: DLC (Diamond-Like Carbon / Black Diamond)

• Engine: 3.5L Twin-Turbocharged EcoBoost V6 / 3.5L Duratec 35

(D35, Ford Cyclone -- [2nd Gen])

• Certifications: ISO 9001 & IATF 16949

 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.

Vehicle Fitment:

• Ford: Expedition, F-150

• Lincoln: Navigator

VIN Code: T, G

*Confirm engine code, VIN, and bore size before purchase.

Ring Sizes – STD (mm)

• 1st Ring: 92.5 × 1.5 × 2.95

• 2nd Ring: 92.5 × 1.0 × 2.7

• Oil Ring: 92.5 × 2.0 × 2.7

Oversize 010 (mm)

• 1st Ring: 92.30 × 1.5 × 2.95

• 2nd Ring: 92.30 × 1.0 × 2.7

• Oil Ring: 92.30 × 2.0 × 2.7

Oversize 020

• 1st Ring: 92.55 × 1.5 × 2.95

• 2nd Ring: 92.55 × 1.0 × 2.7

• Oil Ring: 92.55 × 2.0 × 2.7

*Refer to listing photos for exact parts included

What's Included

• 1 × C.T.I.31-925-03/D DLC Piston Ring Set

Shipping

• Ships same business day

• USPS or best available carrier

Warranty & Returns

• 1-Year Warranty (manufacturing defects only)

• 30-Day Returns

• Item must be unused & in original packaging

• Shipping costs may apply

• Physical damage must be reported within 48 hours

Buyer Responsibility

Buyer is responsible for verifying correct fitment.
If you are unsure about compatibility, message us before ordering.