DPTOOL Camshaft Alignment Tool Kit for Ford 3.5L V6 EcoBoost (303-1655) — Extended Hold Plate & RT11 Socket

DPTOOL 303-1655 is a precision camshaft alignment tool engineered to hold and align camshafts on Ford 3.5L V6 upgraded EcoBoost engines during timing service and component replacement.

This kit is built specifically for the upgraded 3.5L V6 EcoBoost platform (not compatible with the older 3.5L 4V variant) and includes a specialized RT11 cylinder head screw removal socket. Technicians and experienced DIYers will find the extended hold-plate design helps stabilize camshafts across the cylinder head for accurate alignment while servicing F-150, Expedition, Lincoln Navigator and Ford GT models from the model years indicated.

Which engines and vehicle models will this tool fit?

The DPTOOL 303-1655 is intended for the upgraded 3.5L V6 EcoBoost engines only. It does not fit the earlier 3.5L 4V engine family; owners of the older engines should use the alternate part numbers referenced by Ford.

• Compatible with Ford GT (2017–2019) equipped with the 3.5L V6 EcoBoost upgraded engine
• Fits Ford F-150 (2017–2019) when equipped with the upgraded 3.5L V6 EcoBoost
• Suitable for Ford Expedition and Lincoln Navigator (2018–2019) with the 3.5L V6 EcoBoost upgraded engine
• Not compatible with the 3.5L 4V (older design); use 303-1248 or 303-1053 for those engines

What parts are included and what does each do?

The kit centers on the camshaft alignment plate and adds a dedicated RT11 cylinder head screw removal socket. The alignment plate is extended at the ends so it can span the cylinder head and hold the cam journal without bending when used properly; the socket assists with access and removal of head screws on related Ford engines.

• Camshaft alignment plate (303-1655): holds camshafts in fixed position for timing checks and reassembly
• RT11 cylinder head screw removal socket: 1/2-inch drive, wide-sided hex profile for safe screw extraction
• Hardware and fasteners required to secure the tool during use (if included as part of the kit)
• OEM-equivalent fitment guidance to ensure correct selection by engine variant

How should I use the camshaft tool safely and avoid damage?

Use the 303-1655 only to align and hold camshafts — it is not rated to hold camshafts while removing phasers or applying excessive torque, which can bend the plate. Confirm your engine is the upgraded 3.5L V6 before use, follow vehicle service manual procedures, and avoid using the tool as a lever or prying device.

• Verify engine variant (upgraded 3.5L V6 vs 3.5L 4V) before starting work
• Mount the plate so its extended ends sit across the cylinder head for stable support
• Do not use the plate to hold cams while removing or torquing phasers
• Use the RT11 socket with a 1/2-inch drive for safe cylinder head screw removal

What are common troubleshooting tips and compatibility warnings?

Careful model-year and engine checks avoid fitment errors. If the tool seems to flex when used, stop and verify correct placement and intended purpose — the plate will bend if misused for tasks like phaser removal or as a clamp for heavy torque.

• Check VIN or engine code to confirm the upgraded 3.5L V6 configuration
• Replace bent or damaged alignment plates — do not attempt to straighten and reuse
• If your vehicle uses the 3.5L 4V variant, choose Ford-specified alternatives (303-1248, 303-1053)
• Store tools dry and clean to preserve the socket’s hex profile and the plate’s flatness

Who is this for: This DPTOOL kit is aimed at professional mechanics, independent shops, and experienced home technicians who service late-model Ford trucks and performance vehicles fitted with the upgraded 3.5L V6 EcoBoost engine. If you routinely perform timing, camshaft, or cylinder-head service on compatible Ford GT, F-150, Expedition or Lincoln Navigator models, this tool provides OEM-equivalent alignment support and a dedicated head-screw socket to make those tasks more efficient and repeatable.