EP-CAMS2603 Camshaft Synchronizer for Ford Explorer Ranger Aerostar 4.0L 1996-1999

The EP-CAMS2603 is a complete 3-wire camshaft synchronizer for Ford Explorer, Ranger, and Aerostar with the 4.0L OHV V6 (1996-1999) and Mazda B4000. Ford 4.0L cam synchronizer is one of the highest-demand replacements in the North American aftermarket. 3-wire sensor — NOT interchangeable with 2-wire CAMS2607 (1999-2000). Ships with sensor and alignment tool. Replaces F67Z-12A362-AA/AB/AC / CAMS2603 / 84-S2603. ISO 9001:2015, CE-EMC, UL, UKCA certified.

EP Aftermarket Ignition Distributor

EP-CAMS2603 — Camshaft Synchronizer for Ford Explorer Ranger Aerostar 4.0L V6 1996-1999

Camshaft synchronizer · Ford Explorer Ranger Aerostar 4.0L OHV V6 · 1996-99 · 3-wire sensor · Replaces F67Z-12A362-AA/AB/AC · Mazda B4000

ISO 9001:2015CE-EMCUKCAGlobal Export

Model

EP-CAMS2603

Type

Cam Synchronizer

Engine

4.0L OHV V6

App

Explorer/Ranger 1996-99

Wire

3-wire sensor

Technical specifications

ParameterDetail
EP Model No.EP-CAMS2603
Product typeCamshaft Synchronizer Assembly with Cam Position Sensor — 3-Wire
Vehicle applicationFord Explorer 4.0L 1996-1999 · Ford Ranger 4.0L 1996-1999 · Ford Aerostar 4.0L 1996-1997 · Mazda B4000 4.0L 1996-1999
EngineFord 4.0L OHV Cologne V6 — 3-wire cam sensor configuration
IMPORTANT3-wire sensor · NOT interchangeable with 2-wire CAMS2607 (1999-2000)
IncludesSynchronizer housing · 3-wire cam position sensor · Timing alignment tool
Replaces OEMF67Z-12A362-AA · F67Z-12A362-AB · F67Z-12A362-AC · CAMS2603 · 84-S2603 · 689106
Diagnostic codesP0340 · P0341 · P0342 · P0343
CertificationISO 9001:2015 · CE-EMC · UL · UKCA
BrandEP (Ever-Power)

The EP-CAMS2603 is a complete 3-wire camshaft synchronizer for the Ford 4.0L OHV (Cologne) V6 in Explorer, Ranger, Aerostar, and Mazda B4000 applications from 1996 through 1999. The Ford 4.0L OHV V6 camshaft synchronizer is the single most failure-prone synchronizer in the EP catalog -- the Cologne V6's synchronizer is a well-documented weakness, and a search of any Explorer or Ranger 4.0L forum will confirm that cam synchronizer failure is one of the most frequently discussed maintenance issues for these vehicles.

Critical specification: the EP-CAMS2603 uses a 3-wire sensor connector. Ford revised the 4.0L synchronizer in 1999 to use a 2-wire connector (CAMS2607), and these two versions are NOT interchangeable. The 3-wire and 2-wire connectors and circuits differ -- installing the wrong version will result in incorrect or absent cam signal and immediate engine faults. Verify your production year: 1996-1998 applications use 3-wire (EP-CAMS2603); 1999-2000 use 2-wire (EP-CAMS2607).

The F67Z-12A362 series (AA, AB, AC revisions) represents Motorcraft's production updates to the 3-wire synchronizer through the 1996-1999 period, with AC being the final revision. All revisions are covered by EP-CAMS2603.

EP camshaft synchronizer precision production equipment

Key features

Ford 4.0L OHV V6 -- highest-demand synchronizer application

The 4.0L Cologne V6 Explorer and Ranger camshaft synchronizer is one of the most frequently replaced synchronizers in the North American aftermarket. High failure rate, large vehicle population.

3-WIRE connector -- NOT interchangeable with 2-wire CAMS2607

Critical spec check: 1996-1998 4.0L uses 3-wire; 1999-2000 uses 2-wire (CAMS2607). Verify before ordering.

Covers all F67Z-12A362 revisions (AA/AB/AC)

F67Z-12A362-AA, -AB, and -AC are production revisions of the same 3-wire synchronizer. EP-CAMS2603 covers all three revisions.

Explorer, Ranger, Aerostar, Mazda B4000 coverage

Broad Ford 4.0L V6 3-wire platform coverage across the complete 1996-1999 production period.

Vehicle fitment

MakeModelYearsEngine
FordExplorer 4.0L1996-1999OHV V6
FordRanger 4.0L1996-1999OHV V6
FordAerostar 4.0L1996-1997OHV V6
MazdaB4000 4.0L1996-1999OHV V6

EP camshaft synchronizer full series compatibility overview

Application scenarios

Explorer 4.0L P0340 CEL diagnosis

Explorer 4.0L owners with P0340/P0341 codes -- one of the most common Ford Explorer complaints -- replace the cam synchronizer with EP-CAMS2603 (verify 3-wire before ordering).

Ranger 4.0L cam synchronizer service

Ranger 4.0L owners with cam synchronizer failure use EP-CAMS2603 for the 1996-1998 3-wire version.

Ford 4.0L V6 wholesale anchor stock

Parts distributors serving the Explorer and Ranger 4.0L market maintain EP-CAMS2603 and EP-CAMS2607 together for complete 4.0L synchronizer coverage across all years.

Installation guide

Confirm your Explorer/Ranger/Aerostar has a 3-wire cam sensor connector before installing EP-CAMS2603. Set engine to TDC cylinder 1. Mark old synchronizer position carefully. Disconnect 3-wire sensor connector. Remove hold-down and old synchronizer. Install EP-CAMS2603 in same orientation. Use the included alignment tool to confirm rotor C-vane alignment with the timing window mark. Tighten hold-down to factory torque. Reconnect 3-wire connector. Clear fault codes with OBD scanner.

Need pricing or technical assistance?

We respond within 24 hours · MOQ as low as 1 unit · OEM/private-label available

Quality assurance

Every EP Camshaft Synchronizer is manufactured under ISO 9001:2015 certified quality management. Each unit is individually tested for cam position sensor signal accuracy, housing seal integrity, and shaft drive engagement before shipment. CE-EMC electromagnetic compatibility certification, UL listing, and UKCA conformity confirm compliance across all major export markets. Units ship complete with cam position sensor pre-installed and timing alignment tool -- no additional components required for direct OEM replacement.

EP ISO 9001 CE EMC UL UKCA enterprise certifications

More EP HEI distributors

ModelApplicationEngine
EP-CAMS2401Ford Ranger 2.3L 4CYL 1994-97 / Mazda B23002.3L Ranger/B2300
EP-CAMS2600Ford Ranger/Taurus/Windstar 3.0L Vulcan 1998-083.0L Vulcan 1998+
EP-CAMS2601Ford Mustang V6 3.8L/3.9L 1999-04 / FreestarMustang V6 1999-04
EP-CAMS2602Ford Mustang/Thunderbird/Cougar 19964.6L/3.8L 1996
EP-CAMS2604Ford Explorer/Ranger 4.0L 1996-97 sub-var4.0L 96-97 sub
EP-CAMS2605Ford Explorer/Ranger 4.0L 1992-95 early4.0L early 92-95
EP-CAMS2606Ford Taurus/Ranger/Windstar 3.0L 1995-973.0L Vulcan 95-97
EP-CAMS2607Ford Explorer/Ranger 4.0L 1999-00 (2-wire)4.0L 2-wire 99-00

About the manufacturer

EP (Ever-Power) — Automotive Ignition Specialist Since 1999

25+

Years in production

300+

Distributor models

80%

Export ratio

4

Certifications

Founded in 1999 in Ningbo, Zhejiang Province, EP manufactures precision automotive engine management components serving the global aftermarket. Our Camshaft Synchronizer range addresses one of the most common failure modes in Ford EFI vehicles of the 1990s -- cam synchronizer failure causing no-start conditions, rough idle, CEL codes P0340/P0341, and fuel injection timing errors. Each EP unit is engineered as a direct OEM replacement for the original Motorcraft synchronizer assembly.

EP ignition distributor manufacturing facility

Wholesale buyers, Amazon resellers, and automotive service chains source directly from our factory, accessing OEM-quality camshaft synchronizer assemblies at factory-direct pricing. OEM branding and private-label packaging are available for qualifying volumes. EP is part of the Ever-Power Group, also producing drive chains and a comprehensive range of mechanical transmission products.

Frequently asked questions

What is a camshaft synchronizer and how is it different from a distributor?
A camshaft synchronizer is a cam-driven position sensor assembly that replaced the traditional distributor on many Ford EFI engines of the 1990s. Like a distributor, it is driven by the camshaft and mounted in a similar location in the engine block -- but instead of routing high voltage to spark plugs, it contains a camshaft position sensor (CPS) that sends a digital signal to the EFI computer (ECM/PCM). The ECM uses this signal to precisely time fuel injection pulses and ignition firing. On these vehicles, ignition is handled by a separate coil-pack system, not by the synchronizer itself. The synchronizer provides only the camshaft timing reference signal -- but if this signal fails, the engine will not start or will run very poorly with CEL codes P0340, P0341, P0342, or P0343.
Does the EP-CAMS2603 ship with the cam position sensor and timing alignment tool?
Yes. The EP-CAMS2603 ships as a complete assembly including the synchronizer housing, the integrated camshaft position sensor pre-installed in the housing, and a timing alignment tool. The alignment tool is a C-shaped or window-type tool that clips onto the synchronizer during installation to confirm the rotor is positioned correctly relative to TDC before tightening the hold-down bolt. Using the alignment tool is critical -- reinstalling without it can result in a mistimed cam signal that causes immediate engine fault codes and poor running conditions. No additional components are required for direct OEM replacement.
How do I tell if my Ford Explorer 4.0L has a 3-wire or 2-wire cam synchronizer?
The easiest confirmation is to look at the electrical connector on your existing cam synchronizer. Count the pins in the connector: 3 pins means 3-wire (order EP-CAMS2603); 2 pins means 2-wire (order EP-CAMS2607). Alternatively, use the model year as a guide: 1996-1998 Ford Explorer and Ranger 4.0L applications use the 3-wire design (F67Z-12A362 series); 1999-2000 use the 2-wire design (XL5Z-12A362 series). The 3-wire and 2-wire versions have visually different connector housings, so a visual comparison of your existing connector against the new part before installation is always recommended.
What are the symptoms of a failing camshaft synchronizer?
The most common symptoms of a failing camshaft synchronizer include: Check Engine Light with diagnostic trouble codes P0340 (Camshaft Position Sensor Circuit Malfunction), P0341, P0342, or P0343; intermittent no-start conditions where the engine cranks but will not fire; rough or erratic idle quality; hesitation or stumbling under acceleration; poor fuel economy from incorrect injection timing; and stalling at operating temperature. The synchronizer seal can also fail, allowing oil to leak around the housing. On Ford 4.0L OHV V6 applications, the synchronizer is a known high-failure-rate component, and many mechanics recommend proactive replacement on high-mileage Explorer and Ranger 4.0L engines.
What is the difference between the 3-wire and 2-wire cam synchronizer on the Ford 4.0L?
The Ford 4.0L OHV V6 (Cologne engine) used two different cam synchronizer sensor connector configurations during production. Vehicles through approximately 1998 use a 3-wire connector (OEM F67Z-12A362-AA through AC revision). From 1999 onward, Ford revised the synchronizer to use a 2-wire connector (OEM XL5Z-12A362-AA). These two versions are NOT interchangeable -- the connectors, sensor circuit, and housing design differ between the 3-wire and 2-wire generations. Verify your vehicle's production year to determine which version you need: 1992-1998 4.0L applications use the 3-wire design; 1999-2000 applications use the 2-wire design. If uncertain, check the connector on your existing synchronizer before ordering.
How do I install the camshaft synchronizer correctly?
Correct installation of a camshaft synchronizer requires setting the engine to TDC (Top Dead Centre) on the number one cylinder compression stroke before removing the old synchronizer. Mark the position of the synchronizer housing and rotor on the old unit before removal so you can confirm the new unit goes in at the same orientation. After installing the new synchronizer, use the included alignment tool to verify the rotor position matches the correct timing mark before tightening the hold-down bolt. On Ford applications, the leading edge of the rotor's C-shaped vane must align with the timing mark visible through the synchronizer window when the engine is at TDC. Tighten the hold-down to factory torque specification. Failure to use the alignment tool results in a mistimed cam signal that immediately sets fault codes and causes rough running.
How do I order the EP-CAMS2603 for export or wholesale?
EP supports single-unit orders for market sampling, carton quantities for repair shops and parts counters, and container-volume wholesale orders. Standard production lead time is 15-30 days. OEM branding and private-label packaging are available for qualifying volumes. Contact our team via the inquiry form or WhatsApp for pricing and availability.

Ready to order EP HEI distributors?

300+ models · 65K coil · Brass terminals · Factory-direct pricing · Global export

Disclaimer: Ford, Mercury, Mitsubishi, Nissan, Mazda, Eagle, Plymouth, Motorcraft, and other brand names and OEM part numbers are used for product compatibility reference only. EP (Ever-Power) products are high-quality aftermarket replacement parts and are not affiliated with original vehicle or component manufacturers. Always verify fitment using the OEM part number on your existing synchronizer before ordering. All trademarks remain the property of their respective owners.

LMC

Additional information

Editd by

LMC

Product Quick Detail:

  • Standard and non-standard available
  • With high quality and competitive price
  • Prompt delivery
  • Packing as per customer’s demand.

We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.

Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

pruduct quality report

Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
product packages

en_USEnglish