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
Model
EP-CAMS2603
Type
Cam Synchronizer
Engine
4.0L OHV V6
App
Explorer/Ranger 1996-99
Wire
3-wire sensor
Technical specifications
| Parameter | Detail |
| EP Model No. | EP-CAMS2603 |
| Product type | Camshaft Synchronizer Assembly with Cam Position Sensor — 3-Wire |
| Vehicle application | Ford Explorer 4.0L 1996-1999 · Ford Ranger 4.0L 1996-1999 · Ford Aerostar 4.0L 1996-1997 · Mazda B4000 4.0L 1996-1999 |
| Engine | Ford 4.0L OHV Cologne V6 — 3-wire cam sensor configuration |
| IMPORTANT | 3-wire sensor · NOT interchangeable with 2-wire CAMS2607 (1999-2000) |
| Includes | Synchronizer housing · 3-wire cam position sensor · Timing alignment tool |
| Replaces OEM | F67Z-12A362-AA · F67Z-12A362-AB · F67Z-12A362-AC · CAMS2603 · 84-S2603 · 689106 |
| Diagnostic codes | P0340 · P0341 · P0342 · P0343 |
| Certification | ISO 9001:2015 · CE-EMC · UL · UKCA |
| Brand | EP (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.

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
| Make | Model | Years | Engine |
| Ford | Explorer 4.0L | 1996-1999 | OHV V6 |
| Ford | Ranger 4.0L | 1996-1999 | OHV V6 |
| Ford | Aerostar 4.0L | 1996-1997 | OHV V6 |
| Mazda | B4000 4.0L | 1996-1999 | OHV V6 |

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.

More EP HEI distributors
| Model | Application | Engine |
| EP-CAMS2401 | Ford Ranger 2.3L 4CYL 1994-97 / Mazda B2300 | 2.3L Ranger/B2300 |
| EP-CAMS2600 | Ford Ranger/Taurus/Windstar 3.0L Vulcan 1998-08 | 3.0L Vulcan 1998+ |
| EP-CAMS2601 | Ford Mustang V6 3.8L/3.9L 1999-04 / Freestar | Mustang V6 1999-04 |
| EP-CAMS2602 | Ford Mustang/Thunderbird/Cougar 1996 | 4.6L/3.8L 1996 |
| EP-CAMS2604 | Ford Explorer/Ranger 4.0L 1996-97 sub-var | 4.0L 96-97 sub |
| EP-CAMS2605 | Ford Explorer/Ranger 4.0L 1992-95 early | 4.0L early 92-95 |
| EP-CAMS2606 | Ford Taurus/Ranger/Windstar 3.0L 1995-97 | 3.0L Vulcan 95-97 |
| EP-CAMS2607 | Ford 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.

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?
Does the EP-CAMS2603 ship with the cam position sensor and timing alignment tool?
How do I tell if my Ford Explorer 4.0L has a 3-wire or 2-wire cam synchronizer?
What are the symptoms of a failing camshaft synchronizer?
What is the difference between the 3-wire and 2-wire cam synchronizer on the Ford 4.0L?
How do I install the camshaft synchronizer correctly?
How do I order the EP-CAMS2603 for export or wholesale?
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
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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.

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
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
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






