EP-1829A Electronic Distributor for Cadillac Escalade 5.7L Chevrolet V8 — Variant

The EP-1829A is a complete electronic distributor for Cadillac Escalade 5.7L Vortec V8 (1999-2000) and related Chevrolet 5.7L V8 variant applications. Variant configuration of EP-1829 — verify OEM number 12570425 or 93441558 before ordering (use EP-1829 for OEM 10458104). Ships with cam position sensor, cap, and rotor. Plug-and-play replacement compatible with factory PCM. No timing adjustment required. Replaces OEM 12570425 / 93441558 / 94672691 / DST1829A. ISO 9001:2015, CE-EMC, UL, UKCA certified.

EP Aftermarket Ignition Distributor

EP-1829A — Electronic Distributor for Cadillac Escalade 5.7L and Chevrolet V8 -- Variant Configuration

GM EFI distributor · Cadillac Escalade 5.7L / Chevrolet 8CYL variant · Replaces 12570425 93441558 · Cap and rotor included

ISO 9001:2015CE-EMCUKCAGlobal Export

Model

EP-1829A

Type

EFI Electronic

Engine

5.7L V8

Application

Cadillac/Chevy Variant

OEM

12570425

Technical specifications

ParameterDetail
EP Model No.EP-1829A
Product typeElectronic Ignition Distributor — Complete Assembly (Variant Configuration)
Vehicle applicationCadillac Escalade 5.7L · Chevrolet V8 variant applications
EngineGM 5.7L (350 CID) V8 Vortec EFI
NoteVerify OEM part number before ordering -- confirm EP-1829A vs EP-1829 for your application
IncludesDistributor body, cap, rotor, and cam position sensor
Replaces OEM12570425 · 93441558 · 94672691 · DST1829A · 84-1829A
CertificationISO 9001:2015 · CE-EMC · UL · UKCA
BrandEP (Ever-Power)

The EP-1829A is an electronic distributor for Cadillac Escalade 5.7L and related Chevrolet V8 applications -- a variant configuration of the standard EP-1829. The 'A' suffix designates a connector or sensor configuration variant that serves a subset of GM 5.7L V8 applications where the standard EP-1829 configuration does not apply.

First-generation Cadillac Escalade (1999-2000) used the 5.7L Vortec V8 shared with the Chevrolet Tahoe and Suburban platforms. This engine uses the cast-aluminum housing Vortec distributor with an integrated cam position sensor. The EP-1829A replaces OEM 12570425 and 93441558, the primary OEM references for the Vortec 5.7L distributor in these Cadillac applications.

Verify the OEM part number on your existing distributor before ordering to confirm whether your application requires the EP-1829 or EP-1829A variant. Both cover Cadillac 5.7L V8 applications but with different connector and sensor configurations.

EP automotive ignition distributor precision production equipment

Key features

Cadillac Escalade 5.7L Vortec coverage

Covers the first-generation Escalade (1999-2000) with the 5.7L Vortec V8.

OEM variant -- verify before ordering

The 'A' configuration differs from EP-1829 in connector or sensor specification. Check OEM number 12570425 or 93441558 to confirm.

Complete cam sensor assembly

Cam position sensor integrated into the distributor assembly -- ships complete with cap and rotor.

Replaces OEM 12570425 / 93441558

Direct replacement for the most common Vortec 5.7L distributor references used in Cadillac Escalade applications.

Vehicle fitment

MakeModelYearsEngine
CadillacEscalade (1st gen)1999-20005.7L Vortec V8
ChevroletV8 applications (verify OEM 12570425)Various5.7L V8

EP GM distributor full series compatibility overview

Application scenarios

First-gen Escalade distributor service

Escalade owners with the 5.7L Vortec engine use EP-1829A for distributor replacement, verifying the OEM number matches 12570425 or 93441558.

GM Vortec 5.7L wholesale supply

Parts distributors stock EP-1829A and EP-1829 as a pair to cover the full range of Cadillac and Chevrolet 5.7L V8 distributor configurations.

Tahoe / Suburban 5.7L variant supply

The Vortec 5.7L distributor serves across Tahoe, Suburban, and Escalade platforms -- EP-1829A covers the variant configuration for these applications.

Installation guide

Verify OEM part number on existing distributor matches 12570425 or 93441558 before installing EP-1829A. Disconnect battery. Mark distributor position. Disconnect electrical connectors (note: this variant has a different connector than standard EP-1829 units). Remove hold-down and old distributor. Install EP-1829A in same orientation. Reconnect connectors. No timing adjustment required.

Need pricing or technical assistance?

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

Quality assurance

Every EP GM distributor is manufactured under ISO 9001:2015 certified quality management. Each unit is individually tested for cap-to-rotor alignment, pickup or optical sensor signal function, shaft seal integrity, and electrical 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-8381Chevy Camaro 5.7L 1992-94 Optispark BilletLT1 Billet
EP-83811Pontiac Firebird 5.7L 1993-94 Optispark BilletLT1 Billet
EP-1832Chevy Camaro/Corvette 5.7L 1992-94 OptisparkLT1 Standard
EP-1803Pontiac Firebird 5.7L 1993-94 OptisparkLT1 Standard
EP-1829Cadillac Escalade/Fleetwood 5.7LGM EFI V8
EP-1830Chevy GMC 5.0/5.7L V8 C1500 Blazer 1987-1995Core GM V8
EP-1830AChevy GMC 5.0/5.7L V8 VariantGM V8 Variant
EP-1831Buick Roadmaster / Cadillac Fleetwood 5.7LB-body V8

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 produces over 300 distributor models covering classic and modern GM, Ford, Chrysler, and international applications. Our GM EFI Distributor range is engineered as a direct OEM replacement for the factory Delco units -- same external dimensions, same connector configuration, same cap and rotor interface -- with improvements in housing material and component quality that address the known failure modes of the original distributors.

EP ignition distributor production line

Wholesale buyers, Amazon resellers, and automotive service chains source directly from our factory, accessing OEM-quality replacement distributors at factory-direct pricing. OEM branding and private-label packaging are available for qualifying order volumes. EP is part of the Ever-Power Group, also producing couplings 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-1829A ship with the cap, rotor, and all necessary sensors?
Yes. The EP-1829A 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.
What is the difference between the EP-1829 and EP-1829A for the Cadillac Escalade?
Both EP-1829 and EP-1829A cover Cadillac 5.7L V8 distributor applications, but they serve different connector or sensor configurations within the GM 5.7L distributor family. EP-1829 primarily covers earlier Cadillac Fleetwood/Brougham applications (OEM 10458104), while EP-1829A covers the Vortec-era Escalade and related Chevrolet applications (OEM 12570425, 93441558). The most reliable way to determine which unit you need is to check the OEM number on your existing distributor. If it shows 10458104, order EP-1829. If it shows 12570425 or 93441558, order EP-1829A.
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-1829A 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, Cadillac, Isuzu, 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:

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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.

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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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