Electronic Throttle Body For Cadillac Escalade & Chevrolet Avalanche/Express/Silverado 1500 – 87mm – OE2173151 – LOREADA

87mm Throttle Body For Cadillac Escalade ESV & Chevrolet Avalanche Silverado 1500 Express 1500 2500 3500 | OEM Replacement | OE 2173151 | LOREADA

$66.77 USD
Prix promotionnel  $66.77 USD Prix régulier  $80.12 USD
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Electronic Throttle Body For Cadillac Escalade & Chevrolet Avalanche/Express/Silverado 1500 – 87mm – OE2173151 – LOREADA

87mm Throttle Body For Cadillac Escalade ESV & Chevrolet Avalanche Silverado 1500 Express 1500 2500 3500 | OEM Replacement | OE 2173151 | LOREADA

En stock
$66.77 USD
Prix promotionnel  $66.77 USD Prix régulier  $80.12 USD
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What is the shipping fee?

International Standard Shipping from China.  Shipping fees are calculated at checkout based on your destination and order details.

Import duties, taxes and customs or postal handling fees may apply separately, depending on your destination and local regulations.

When I can get my order?

We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times, such as 4-13 days, vary depending on your location.

Shipping fees are calculated at checkout based on your destination and order details.

Import duties, taxes and customs or postal handling fees may apply separately, depending on your destination and local regulations.

Product Information

Explore detailed specifications and features

Item Detail
Product Name Electronic Throttle Body (ETB)
Bore Size 87mm
Housing Material Die-Cast Aluminum Alloy
Butterfly Valve Stainless Steel / Anodized Aluminum
Seals Viton (Oil-Resistant Fluorine Rubber)
OE Numbers 2173151 / 12629992 / 12601387 / S20019 / 673013
Warranty 12 / 24 Months

Make Model Notes
Cadillac Escalade V8
Cadillac Escalade ESV V8
Chevrolet Avalanche V8
Chevrolet Silverado 1500 V8
Chevrolet Express 1500 V8
Chevrolet Express 2500 V8
Chevrolet Express 3500 V8

This OEM-grade 87mm throttle body is a direct throttle body replacement for Cadillac Escalade/Escalade ESV and Chevrolet Avalanche, Silverado 1500, and Express 1500/2500/3500 with GM V8 engines. Engineered to GM OEM specifications, it resolves common throttle body symptoms including rough idle, engine hesitation, stalling, reduced power, and throttle lag — common issues on high-mileage GM V8 trucks and SUVs that often prompt throttle body cleaning or full replacement.


  • OEM-Grade Throttle Body – Direct bolt-on replacement, no wiring or programming required for most models.
  • 87mm Precision Bore – Factory-correct diameter for GM V8 truck and SUV applications.
  • Dual Redundant Throttle Body Sensor (TPS) – Prevents idle fluctuations, hunting, and false error codes.
  • Throttle Body Gasket Compatible – Fits standard GM OEM gasket for a clean, leak-free seal.
  • Viton Seals – Oil-resistant fluorine rubber for long-term airtight fitment.
  • 100% Factory Tested – Thermal cycling, airtightness, and full-stroke angle calibration before shipment.

Specification Value
Bore Size 87mm
Housing Die-Cast Aluminum Alloy
Seal Viton
OE Ref 2173151 / 12629992 / 12601387 / S20019 / 673013
Warranty 12 / 24 Months

Professional installation is strongly recommended. On GM V8 platforms, a throttle body relearn (idle relearn) procedure is required after fitting this throttle body replacement — disconnect the battery for 10 minutes or use a compatible GM scan tool to reset the ECM idle position. If the original unit had heavy carbon deposits, perform throttle body cleaning of the intake manifold before installation. Do not spray abrasive cleaners directly on the new throttle body bore or butterfly valve.


Confirm your vehicle model matches the listing. Compare product photos with your original part. Locate the original part number (OE) on your component and match it with ours. Contact us with your part number if unsure.


Our price includes only the product and standard shipping. Buyers are responsible for all additional charges (e.g., customs duties, import fees, VAT, insurance). Customs policies vary by country – please check your local import regulations before ordering. If customs clearance fails due to the buyer's reasons, the buyer will be fully responsible, and refunds will not be provided.

Item Detail
Product Name Electronic Throttle Body (ETB)
Bore Size 87mm
Housing Material Die-Cast Aluminum Alloy
Butterfly Valve Stainless Steel / Anodized Aluminum
Seals Viton (Oil-Resistant Fluorine Rubber)
OE Numbers 2173151 / 12629992 / 12601387 / S20019 / 673013
Warranty 12 / 24 Months

Make Model Notes
Cadillac Escalade V8
Cadillac Escalade ESV V8
Chevrolet Avalanche V8
Chevrolet Silverado 1500 V8
Chevrolet Express 1500 V8
Chevrolet Express 2500 V8
Chevrolet Express 3500 V8

This OEM-grade 87mm throttle body is a direct throttle body replacement for Cadillac Escalade/Escalade ESV and Chevrolet Avalanche, Silverado 1500, and Express 1500/2500/3500 with GM V8 engines. Engineered to GM OEM specifications, it resolves common throttle body symptoms including rough idle, engine hesitation, stalling, reduced power, and throttle lag — common issues on high-mileage GM V8 trucks and SUVs that often prompt throttle body cleaning or full replacement.


  • OEM-Grade Throttle Body – Direct bolt-on replacement, no wiring or programming required for most models.
  • 87mm Precision Bore – Factory-correct diameter for GM V8 truck and SUV applications.
  • Dual Redundant Throttle Body Sensor (TPS) – Prevents idle fluctuations, hunting, and false error codes.
  • Throttle Body Gasket Compatible – Fits standard GM OEM gasket for a clean, leak-free seal.
  • Viton Seals – Oil-resistant fluorine rubber for long-term airtight fitment.
  • 100% Factory Tested – Thermal cycling, airtightness, and full-stroke angle calibration before shipment.

Specification Value
Bore Size 87mm
Housing Die-Cast Aluminum Alloy
Seal Viton
OE Ref 2173151 / 12629992 / 12601387 / S20019 / 673013
Warranty 12 / 24 Months

Professional installation is strongly recommended. On GM V8 platforms, a throttle body relearn (idle relearn) procedure is required after fitting this throttle body replacement — disconnect the battery for 10 minutes or use a compatible GM scan tool to reset the ECM idle position. If the original unit had heavy carbon deposits, perform throttle body cleaning of the intake manifold before installation. Do not spray abrasive cleaners directly on the new throttle body bore or butterfly valve.


Confirm your vehicle model matches the listing. Compare product photos with your original part. Locate the original part number (OE) on your component and match it with ours. Contact us with your part number if unsure.


Our price includes only the product and standard shipping. Buyers are responsible for all additional charges (e.g., customs duties, import fees, VAT, insurance). Customs policies vary by country – please check your local import regulations before ordering. If customs clearance fails due to the buyer's reasons, the buyer will be fully responsible, and refunds will not be provided.

87mm Throttle Body For Cadillac Escalade ESV & Chevrolet Avalanche Silverado 1500 Express 1500 2500 3500 | OEM Replacement | OE 2173151 | LOREADA

WHY CHOOSE LOREADA

OEM Calibration

Self developed products Precision-engineered for stable idle and acceleration.

Factory Tested

Every unit tested before shipping for guaranteed reliability.

Global Shipping

Fast delivery worldwide with tracking provided.

Technical Support

Professional fitment assistance & Detailed explanation of the manual

Frequently Asked Questions

When I can get my order?

We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times, such as 4-13 days, vary depending on your location.

What is the shipping fee?

International Standard Shipping from China.  Shipping fees are calculated at checkout based on your destination and order details.

Import duties, taxes and customs or postal handling fees may apply separately, depending on your destination and local regulations.

What warranty do you offer?

LOREADA provides a 2-year limited warranty on this product.

Are you ISO or IATF certified?

Yes. LOREADA holds both ISO 9001 and IATF 16949 certifications, the highest quality management standards in the automotive industry. Every unit passes FQC, IQC, IPQC, and OQC inspection before shipment.

Need help choosing or using a product?

Contact LOREADA for product selection, compatibility checks, troubleshooting, warranty review, after-sales service, or bulk pricing support. Please include your product model, order number if available, and a short description of what you need.

Do you ship internationally?

Yes. We ship worldwide via DHL, UPS, and FedEx express and standard shipping, as well as by sea freight for larger orders.

Are you a trading company or a manufacturer?

LOREADA is a fully integrated manufacturer — we handle design, R&D, production, quality control, sales, and after-sales service entirely in-house. You are buying factory-direct, with no middlemen. We specialize in precision engine components, including throttle bodies, electronic throttle systems, engine sensors (TPS, MAP, IAT, coolant temperature), and IAC valves. We cover 600+ throttle body SKUs and 3,000+ sensor SKUs for motorcycles, passenger cars, trucks, and ATVs.

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