EP-1452 Electronic Distributor for Oldsmobile Calais GMC Sonoma Chevrolet S10 V6

The EP-1452 is a complete electronic distributor for Oldsmobile Calais, GMC Sonoma, Chevrolet S10 pickup, Pontiac Grand Am, and Buick Skylark with GM 2.5L 4-cylinder and 2.8L V6 engines (1985-1993). Verify OEM 1103452 or 1103453 before ordering. Ships with cap and rotor. Replaces OEM 1103452 / 1103453 / 84-1452 / DST1452. ISO 9001:2015, CE-EMC, UL, UKCA certified.

EP Aftermarket Ignition Distributor

EP-1452 — Electronic Distributor for Oldsmobile Calais / GMC Sonoma / Chevrolet S10 V6

GM distributor · Oldsmobile Calais / GMC Sonoma / Chevrolet S10 V6 · 1985-1993 · Replaces 1103452 · Cap rotor included

ISO 9001:2015CE-EMCUKCAGlobal Export

Model

EP-1452

Type

Electronic

Engine

V6 Compact

Application

Calais/Sonoma/S10

OEM

1103452

Technical specifications

ParameterDetail
EP Model No.EP-1452
Product typeElectronic Ignition Distributor — Complete Assembly
Vehicle applicationOldsmobile Calais · GMC Sonoma · Chevrolet S10 · Pontiac Grand Am · Buick Skylark
EngineGM V6 and 4-cylinder compact engine applications, 1985-1993
IncludesDistributor body, cap, rotor, and pickup module
Replaces OEM1103452 · 1103453 · 84-1452 · DST1452
CertificationISO 9001:2015 · CE-EMC · UL · UKCA
BrandEP (Ever-Power)

The EP-1452 is an electronic distributor for compact GM cars and trucks equipped with the 2.5L 4-cylinder and 2.8L V6 engines, covering Oldsmobile Calais, GMC Sonoma, Chevrolet S10 compact pickup, Pontiac Grand Am, and Buick Skylark across the late 1980s and early 1990s. This application represents the compact truck and front-wheel-drive compact car segment of the GM platform sharing strategy.

The Chevrolet S10 compact pickup with the 2.8L V6 is a particularly common application in this group -- the S10 was GM's best-selling compact pickup through the late 1980s and early 1990s, and the 2.8L V6 was the standard performance option over the base 4-cylinder. Many S10 trucks remain in active service as economical work vehicles, making the 2.8L distributor a continuing parts demand.

Verify the OEM number on your specific vehicle's distributor before ordering, as the compact GM platform was updated several times through the production period and the exact distributor configuration may vary by model year.

EP automotive ignition distributor precision production equipment

Key features

Compact GM car and truck V6/4CYL coverage

Covers the S10 pickup, Sonoma, Calais, Grand Am, and Skylark across the compact GM platform for 2.5L and 2.8L applications.

S10 2.8L V6 high-demand application

The Chevrolet S10 2.8L V6 is the most common vehicle in this application group -- a high-demand service item for still-active S10 trucks.

Replaces OEM 1103452 / 1103453

Primary OEM cross-references for the compact GM platform distributor.

Complete cap and rotor assembly

Ships ready to install.

Vehicle fitment

MakeModelYearsEngine
OldsmobileCalais1985-1989V6 2.8L / L4 2.5L
GMCSonoma1991-1993V6 2.8L / L4 2.5L
ChevroletS10 Pickup1985-1993V6 2.8L / L4 2.5L
PontiacGrand Am1985-1991V6 2.8L / L4 2.5L
BuickSkylark1985-1991V6 2.8L / L4 2.5L

EP GM distributor full series compatibility overview

Application scenarios

S10 compact truck maintenance

Work truck owners running S10 pickups with the 2.8L V6 use EP-1452 for periodic distributor replacement.

Calais and Grand Am parts supply

Parts counters serving Oldsmobile Calais and Pontiac Grand Am owners stock EP-1452 for V6 and 4-cylinder distributor service.

GM compact platform wholesale

Wholesale distributors serving the compact GM car and truck segment stock EP-1452 for multi-nameplate distributor coverage.

Installation guide

Disconnect battery. Mark rotor position and housing alignment. The S10 and Sonoma provide standard top-engine distributor access. Compact car applications (Calais, Grand Am) may have tighter engine bay access. Disconnect multi-pin connector and vacuum hose. Remove hold-down, install EP-1452 in same position. Reconnect all connections.

Need pricing or technical assistance?

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

Quality assurance

Every EP distributor is manufactured under ISO 9001:2015 certified quality management. Each unit is individually tested for cap-to-rotor alignment, pickup signal function, shaft seal integrity, and connector specification before shipment. CE-EMC electromagnetic compatibility certification, UL listing, and UKCA conformity mark confirm compliance across all major export markets. Units ship complete with cap and rotor -- no additional components required for installation.

EP ISO 9001 CE EMC UL UKCA enterprise certifications

More EP HEI distributors

ModelApplicationEngine
EP-1633Buick Skylark / Camaro / Pontiac Fiero V6GM 2.8/3.1L V6
EP-1454Buick Century / Camaro / Celebrity / FirebirdGM 4CYL / V6
EP-1612Buick LeSabre 1970 / Chevrolet 1965 GM20Classic GM V8
EP-2084Ford FE 330 / 360 / 390 V8Ford FE Classic
EP-2085AFord 351 / 400 V8 1975-1989Ford 351/400
EP-111Chevrolet OEM 9230087111GM OEM-Specific
EP-5052Chevrolet 400 CID SBC V8Chevy 400 SBC
EP-5047Ford OEM Catalog 5047Ford OEM-Ref

About the manufacturer

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

25+

Years in production

300+

Distributor models

80%

Export ratio

4

Certifications

HZPT is the international brand of Ningbo Xianlong Automobile Fittings Co., Ltd., established 1999. With over 25 years of distributor manufacturing experience, EP provides the automotive aftermarket with reliable OEM-specification replacement distributors for GM vehicles from the classic EFI era of the late 1980s through the mid-1990s -- a period when millions of C/K trucks, Blazers, Suburbans, and passenger cars were built with distributors that have now accumulated 30 or more years of service and are approaching or past their reliable service life.

EP ignition distributor manufacturing facility

Each EP GM Distributor ships as a complete plug-and-play assembly -- distributor body, cap, rotor, and all sensors -- ready for direct installation without modification. Reference OEM part numbers are provided for fitment verification. EP is part of the Ever-Power Group, also producing sprockets and a comprehensive range of mechanical transmission products.

Frequently asked questions

What are the symptoms of a failing GM EFI distributor?
Common failure symptoms for GM EFI distributors of this era include intermittent no-start conditions, engine stalling at operating temperature, erratic idle quality, loss of power under acceleration, and check engine codes related to the distributor reference signal or cam position sensor. The Vortec-era distributors (1996-2002) are particularly known for plastic housing cracking or warping from heat cycling, which allows oil or coolant contamination of the optical or magnetic pickup sensor inside the housing. The LT1 Optispark distributors (1992-1994) are known for moisture infiltration that degrades the optical sensor window, typically producing a characteristic hard cold-start condition that improves as the engine warms up.
Does the EP-1452 ship with the cap, rotor, and all necessary sensors?
Yes. The EP-1452 ships as a complete plug-and-play assembly including the distributor body, distributor cap, rotor, and all internal sensors required for operation in the listed applications. For Optispark LT1 units, the optical sensor assembly is included as part of the complete distributor. For standard EFI units, the magnetic pickup and cam position reference sensor are integrated into the assembly. No additional ignition components are required beyond the standard ignition module and coil already present on your vehicle.
Does the Chevrolet S10 2.8L and the GMC Sonoma 2.8L use the same distributor?
Yes. The Chevrolet S10 and GMC Sonoma are twin trucks sharing the same powertrain and chassis, and the 2.8L V6 distributor is identical between them. The EP-1452 fits both S10 and Sonoma 2.8L V6 applications. Verify the OEM number matches 1103452 or 1103453 for your specific production year.
Do I need to reset the timing after installing this distributor?
For most GM EFI applications of this era, the distributor does not require timing adjustment after replacement if the engine is set to top dead center (TDC) before the old distributor is removed and the new unit is installed in the same position. Most 1987-1995 GM TBI and EFI applications use a computer-controlled timing advance that does not require a timing light for replacement -- align the distributor housing marks and the rotor to the same position as the original unit. For 1992-1994 LT1 Optispark applications, the base timing is not adjustable in the field; the Optispark provides a crankshaft-referenced timing signal and the PCM controls all timing advance. Consult the factory service manual for your specific vehicle year and engine for the correct installation procedure.
How do I order the EP-1452 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.

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

Disclaimer: Chevrolet, GMC, Pontiac, Buick, Oldsmobile, Cadillac, Ford, Holden, Chrysler Australia, and other vehicle 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 distributor before ordering. All trademarks remain the property of their respective owners.

LMC

Additional information

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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.

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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

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