Product Information
Explore detailed specifications and features
This throttle body is designed for GM 3.6L V6 (LY7) engines and 4.3L / 4.8L / 5.3L / 6.0L V8 engines. Please verify your original OE number before ordering. Not compatible with 2.0L / 2.2L / 2.4L 4-cylinder engines, diesel engines, or models without electronic throttle control. The 72mm bore is the factory specification for these applications.
This part is for GM 3.6L V6 (LY7) and 4.3L / 4.8L / 5.3L / 6.0L V8 engines ONLY. It will NOT fit:
- 2.0L / 2.2L / 2.4L 4-cylinder engines (Ecotec family – different throttle body)
- 3.5L / 3.9L V6 engines (LZ4, LZ9 – different throttle body)
- Diesel engines (Duramax – different design)
- Models without electronic throttle control (cable-operated throttle)
- Confirm your vehicle is equipped with the 3.6L V6 LY7 engine or 4.3L / 4.8L / 5.3L / 6.0L V8 Vortec engine. Not compatible with 2.0L / 2.2L / 2.4L 4-cylinder engines.
- Check your vehicle model and year against the fitment table (Chevrolet Malibu, Silverado, Express, Impala, Tahoe, Suburban; GMC Sierra, Savana, Yukon, Envoy; Pontiac G6, G8; Saturn Aura; Cadillac Escalade; Buick Rainier; Hummer H3; Isuzu Ascender; Saab 9-7X).
-
Locate the original part number on your existing throttle body – look for
12595829,12568580,12615503,12618735,12580760,12679524,12572658, or12572650. - Verify the connector has 6 pins (blade terminal type, GM standard for this generation).
- Measure or confirm the throttle bore diameter is 72mm.
- Check the mounting bolt pattern (4 bolts) and air intake duct connection match the product photos.
-
Note that a new mounting gasket is not included and must be purchased separately (GM gasket part number often
12593360or equivalent). - Contact us with your VIN or a photo of your original part if unsure.
| Parameter | Specification |
|---|---|
| OE Numbers |
12595829 / 12568580 / 12615503 / 12618735 / 12580760 / 12679524 / 12572658 / 12572650
|
| Product Type | Electronic Throttle Body (ETB) / Drive-by-Wire |
| Bore Diameter | 72 mm (2.83 in) |
| Connector Type | 6-Pin Blade Terminal |
| Mount Holes | 4 |
| Housing Length | 6-5/8 in (approx. 168 mm) |
| Housing Width | 5-1/4 in (approx. 133 mm) |
| Housing Material | Die-cast Aluminum Alloy + Anti-corrosion Surface Treatment |
| Butterfly Valve | Stainless Steel |
| Seal Material | Oil-resistant Fluorine Rubber (Viton) |
| TPS | Integrated (Dual Redundant) |
| Fuel Type | Petrol / Gasoline (Naturally Aspirated) |
| Engine Family | GM High Feature V6 (LY7) / Vortec V6 & V8 |
| Gasket Included | No (purchase separately) |
| Warranty | 12 months (general) / 24 months (motor & sensors) |
| Make | Model / Chassis | Engine | Years | Trim / Notes |
|---|---|---|---|---|
| Buick | Rainier | 4.2L 6-cyl | 2004 – 2007 | – |
| Cadillac | Escalade / ESV / EXT | 6.0L / 6.2L V8 | 2007 – 2008 | – |
| Chevrolet | Avalanche | 5.3L / 6.0L V8 | 2007 – 2008 | – |
| Chevrolet | Colorado | 3.5L / 3.7L 5-cyl | 2004 – 2007 | – |
| Chevrolet | Express 1500 / 2500 / 3500 | 4.3L V6 / 6.0L V8 | 2008 – 2014 | Cargo, Base, LS |
| Chevrolet | Impala | 3.5L / 3.9L V6 | 2006 – 2007 | – |
| Chevrolet | Malibu | 3.6L V6 (LY7) | 2008 – 2012 | LT, LTZ |
| Chevrolet | Monte Carlo | 3.5L / 3.9L V6 | 2006 – 2007 | – |
| Chevrolet | Silverado 1500 / 2500 / 3500 | 4.3L V6 / 4.8L / 5.3L / 6.0L V8 | 2007 – 2013 | LS, LT, WT |
| Chevrolet | SSR | 5.3L V8 | 2005 – 2006 | – |
| Chevrolet | Suburban 1500 / 2500 | 5.3L / 6.0L V8 | 2007 – 2008 | – |
| Chevrolet | Tahoe | 4.8L / 5.3L / 6.0L / 6.2L V8 | 2007 – 2008 | – |
| Chevrolet | Trailblazer / EXT | 4.2L 6-cyl | 2003 – 2008 | LS, LT, SS |
| GMC | Canyon | 3.5L / 3.7L 5-cyl | 2004 – 2007 | – |
| GMC | Envoy / XL / XUV | 4.2L 6-cyl / 5.3L V8 | 2003 – 2008 | SLE, SLT, Denali |
| GMC | Savana 1500 / 2500 / 3500 | 4.3L V6 / 6.0L V8 | 2008 – 2014 | – |
| GMC | Sierra 1500 / 2500 / 3500 | 4.3L V6 / 4.8L / 5.3L / 6.0L V8 | 2007 – 2013 | SLE, SLT, WT |
| GMC | Yukon / XL | 4.8L / 5.3L / 6.0L / 6.2L V8 | 2007 – 2008 | SLE, SLT, Denali |
| Hummer | H3 | 3.5L / 3.7L 5-cyl | 2006 – 2007 | – |
| Isuzu | Ascender | 4.2L 6-cyl / 5.3L V8 | 2003 – 2007 | – |
| Isuzu | i-350 / i-370 | 3.5L / 3.7L 5-cyl | 2006 – 2007 | – |
| Pontiac | G6 | 3.6L V6 (LY7) | 2007 – 2009 | GT |
| Pontiac | G8 | 3.6L V6 (LY7) | 2008 – 2009 | Base |
| Saab | 9-7X | 4.2L 6-cyl / 5.3L V8 | 2005 – 2008 | – |
| Saturn | Aura | 3.6L V6 (LY7) | 2007 – 2009 | XE, XR |
The LOREADA 72mm throttle body is a precision-engineered direct OEM replacement for GM 3.6L High Feature V6 (LY7) and Vortec 4.3L/4.8L/5.3L/6.0L V8 engines. Built to strict GM OE standards, it delivers factory-correct airflow calibration for smooth power delivery, stable idle, and optimal air/fuel mixture across a wide range of Chevrolet, GMC, Buick, Cadillac, Pontiac, Saturn, Hummer, Isuzu, and Saab vehicles. The 72mm bore is precisely calibrated to GM factory specifications, and the 6-pin blade terminal connector matches the standard configuration for this generation of GM vehicles. 100% new construction — not remanufactured, no core charge required.
- ✅ OE Fitment – Direct replacement, no wiring modification required. Matches GM OE numbers 12595829, 12568580, 12615503, and 12618735.
- ✅ 72mm Precision Bore – Factory-correct diameter for proper airflow across GM 3.6L V6 and 4.3L–6.0L V8 engines.
- ✅ GM LY7 / Vortec Optimized – Engineered for GM High Feature 3.6L V6 and Vortec V6/V8 engines (4.3L, 4.8L, 5.3L, 6.0L).
- ✅ Plug & Play – Exact match in dimensions, 6-pin blade terminal connector, and 4-bolt mounting pattern. Uses factory gasket (sold separately).
- ✅ Fast Response – Motor response time ≤ 50 ms for precise throttle control and smooth acceleration.
- ✅ Dual Redundant TPS – Prevents idle fluctuations, hunting, and false error codes (P0638, P0697, P2100, P2119, P2135, P1516).
- ✅ 100% Factory Tested – Thermal cycling, airtightness, and full-stroke angle calibration verified.
- ✅ ISO 16750 Compliant – Meets environmental standards for automotive electrical/electronic equipment.
- ✅ Cross-Platform – Compatible across Chevrolet, GMC, Buick, Cadillac, Pontiac, Saturn, Hummer, Isuzu, and Saab.
- ✅ 100% New – Complete assembly with integrated TPS – not remanufactured, no core charge.
| Type | Part Number(s) |
|---|---|
| GM Main |
12595829, 12568580, 12615503, 12618735
|
| GM Alternate |
12580760, 12679524, 12572658, 12572650
|
| Aftermarket Cross |
LRD-TB336, 217-3150, ETB0017, S20050, 977-313, TB1021, 67-3021, CZM30B-72, VE72-1, 6E-3021
|
IMPORTANT: After replacing the Electronic Throttle Body (ETB) on GM 3.6L / 4.3L / 4.8L / 5.3L / 6.0L engines, a throttle self-learning / idle relearn procedure is REQUIRED. Failure to perform the relearn may result in unstable idle or check engine lights. If issues persist, use a professional diagnostic scanner (e.g., GM MDI / Tech2) to perform a "Throttle Body Relearn" or "Idle Learn".
| Step | Action |
|---|---|
| 1 | Disconnect the negative battery terminal for 5–10 minutes (clears old learned values). |
| 2 | Remove the air intake duct and disconnect the electrical connector (6-pin blade terminal). |
| 3 | Remove any coolant hoses attached to the throttle body (if equipped with throttle body heating). |
| 4 | Remove the four mounting bolts and old throttle body. |
| 5 | Discard the old gasket and clean the mating surface on the intake manifold. |
| 6 | Install a new gasket (strongly recommended – sold separately). |
| 7 | Install the new throttle body. Torque bolts to 8–10 Nm (6–7 lb-ft). |
| 8 | Reconnect coolant hoses (if equipped), electrical connector, and air intake duct. |
| 9 | Reconnect the battery. |
| 10 | Turn ignition ON (do not start engine) and wait 10 seconds. |
| 11 | Turn ignition OFF for 10 seconds. |
| 12 | Start the engine and let it idle for 5 minutes (do not touch accelerator). |
| 13 | Turn engine off for 30 seconds, then restart and drive normally. The ECU will complete adaptation automatically. |
- Pre-installation check: Inspect the throttle body for any defects. Verify the OE number and connector type (6-pin blade) before installation.
- Gasket requirement: A new mounting gasket is strongly recommended — gasket not included. A damaged or reused gasket may cause rough idle or check engine lights.
- Packing List: Electronic Throttle Body Unit (72mm bore, complete assembly with TPS and motor) × 1; Warranty Card × 1. (Gasket and installation hardware not included)
This throttle body is designed for GM 3.6L V6 (LY7) engines and 4.3L / 4.8L / 5.3L / 6.0L V8 engines. Please verify your original OE number before ordering. Not compatible with 2.0L / 2.2L / 2.4L 4-cylinder engines, diesel engines, or models without electronic throttle control. The 72mm bore is the factory specification for these applications.
This part is for GM 3.6L V6 (LY7) and 4.3L / 4.8L / 5.3L / 6.0L V8 engines ONLY. It will NOT fit:
- 2.0L / 2.2L / 2.4L 4-cylinder engines (Ecotec family – different throttle body)
- 3.5L / 3.9L V6 engines (LZ4, LZ9 – different throttle body)
- Diesel engines (Duramax – different design)
- Models without electronic throttle control (cable-operated throttle)
- Confirm your vehicle is equipped with the 3.6L V6 LY7 engine or 4.3L / 4.8L / 5.3L / 6.0L V8 Vortec engine. Not compatible with 2.0L / 2.2L / 2.4L 4-cylinder engines.
- Check your vehicle model and year against the fitment table (Chevrolet Malibu, Silverado, Express, Impala, Tahoe, Suburban; GMC Sierra, Savana, Yukon, Envoy; Pontiac G6, G8; Saturn Aura; Cadillac Escalade; Buick Rainier; Hummer H3; Isuzu Ascender; Saab 9-7X).
-
Locate the original part number on your existing throttle body – look for
12595829,12568580,12615503,12618735,12580760,12679524,12572658, or12572650. - Verify the connector has 6 pins (blade terminal type, GM standard for this generation).
- Measure or confirm the throttle bore diameter is 72mm.
- Check the mounting bolt pattern (4 bolts) and air intake duct connection match the product photos.
-
Note that a new mounting gasket is not included and must be purchased separately (GM gasket part number often
12593360or equivalent). - Contact us with your VIN or a photo of your original part if unsure.
| Parameter | Specification |
|---|---|
| OE Numbers |
12595829 / 12568580 / 12615503 / 12618735 / 12580760 / 12679524 / 12572658 / 12572650
|
| Product Type | Electronic Throttle Body (ETB) / Drive-by-Wire |
| Bore Diameter | 72 mm (2.83 in) |
| Connector Type | 6-Pin Blade Terminal |
| Mount Holes | 4 |
| Housing Length | 6-5/8 in (approx. 168 mm) |
| Housing Width | 5-1/4 in (approx. 133 mm) |
| Housing Material | Die-cast Aluminum Alloy + Anti-corrosion Surface Treatment |
| Butterfly Valve | Stainless Steel |
| Seal Material | Oil-resistant Fluorine Rubber (Viton) |
| TPS | Integrated (Dual Redundant) |
| Fuel Type | Petrol / Gasoline (Naturally Aspirated) |
| Engine Family | GM High Feature V6 (LY7) / Vortec V6 & V8 |
| Gasket Included | No (purchase separately) |
| Warranty | 12 months (general) / 24 months (motor & sensors) |
| Make | Model / Chassis | Engine | Years | Trim / Notes |
|---|---|---|---|---|
| Buick | Rainier | 4.2L 6-cyl | 2004 – 2007 | – |
| Cadillac | Escalade / ESV / EXT | 6.0L / 6.2L V8 | 2007 – 2008 | – |
| Chevrolet | Avalanche | 5.3L / 6.0L V8 | 2007 – 2008 | – |
| Chevrolet | Colorado | 3.5L / 3.7L 5-cyl | 2004 – 2007 | – |
| Chevrolet | Express 1500 / 2500 / 3500 | 4.3L V6 / 6.0L V8 | 2008 – 2014 | Cargo, Base, LS |
| Chevrolet | Impala | 3.5L / 3.9L V6 | 2006 – 2007 | – |
| Chevrolet | Malibu | 3.6L V6 (LY7) | 2008 – 2012 | LT, LTZ |
| Chevrolet | Monte Carlo | 3.5L / 3.9L V6 | 2006 – 2007 | – |
| Chevrolet | Silverado 1500 / 2500 / 3500 | 4.3L V6 / 4.8L / 5.3L / 6.0L V8 | 2007 – 2013 | LS, LT, WT |
| Chevrolet | SSR | 5.3L V8 | 2005 – 2006 | – |
| Chevrolet | Suburban 1500 / 2500 | 5.3L / 6.0L V8 | 2007 – 2008 | – |
| Chevrolet | Tahoe | 4.8L / 5.3L / 6.0L / 6.2L V8 | 2007 – 2008 | – |
| Chevrolet | Trailblazer / EXT | 4.2L 6-cyl | 2003 – 2008 | LS, LT, SS |
| GMC | Canyon | 3.5L / 3.7L 5-cyl | 2004 – 2007 | – |
| GMC | Envoy / XL / XUV | 4.2L 6-cyl / 5.3L V8 | 2003 – 2008 | SLE, SLT, Denali |
| GMC | Savana 1500 / 2500 / 3500 | 4.3L V6 / 6.0L V8 | 2008 – 2014 | – |
| GMC | Sierra 1500 / 2500 / 3500 | 4.3L V6 / 4.8L / 5.3L / 6.0L V8 | 2007 – 2013 | SLE, SLT, WT |
| GMC | Yukon / XL | 4.8L / 5.3L / 6.0L / 6.2L V8 | 2007 – 2008 | SLE, SLT, Denali |
| Hummer | H3 | 3.5L / 3.7L 5-cyl | 2006 – 2007 | – |
| Isuzu | Ascender | 4.2L 6-cyl / 5.3L V8 | 2003 – 2007 | – |
| Isuzu | i-350 / i-370 | 3.5L / 3.7L 5-cyl | 2006 – 2007 | – |
| Pontiac | G6 | 3.6L V6 (LY7) | 2007 – 2009 | GT |
| Pontiac | G8 | 3.6L V6 (LY7) | 2008 – 2009 | Base |
| Saab | 9-7X | 4.2L 6-cyl / 5.3L V8 | 2005 – 2008 | – |
| Saturn | Aura | 3.6L V6 (LY7) | 2007 – 2009 | XE, XR |
The LOREADA 72mm throttle body is a precision-engineered direct OEM replacement for GM 3.6L High Feature V6 (LY7) and Vortec 4.3L/4.8L/5.3L/6.0L V8 engines. Built to strict GM OE standards, it delivers factory-correct airflow calibration for smooth power delivery, stable idle, and optimal air/fuel mixture across a wide range of Chevrolet, GMC, Buick, Cadillac, Pontiac, Saturn, Hummer, Isuzu, and Saab vehicles. The 72mm bore is precisely calibrated to GM factory specifications, and the 6-pin blade terminal connector matches the standard configuration for this generation of GM vehicles. 100% new construction — not remanufactured, no core charge required.
- ✅ OE Fitment – Direct replacement, no wiring modification required. Matches GM OE numbers 12595829, 12568580, 12615503, and 12618735.
- ✅ 72mm Precision Bore – Factory-correct diameter for proper airflow across GM 3.6L V6 and 4.3L–6.0L V8 engines.
- ✅ GM LY7 / Vortec Optimized – Engineered for GM High Feature 3.6L V6 and Vortec V6/V8 engines (4.3L, 4.8L, 5.3L, 6.0L).
- ✅ Plug & Play – Exact match in dimensions, 6-pin blade terminal connector, and 4-bolt mounting pattern. Uses factory gasket (sold separately).
- ✅ Fast Response – Motor response time ≤ 50 ms for precise throttle control and smooth acceleration.
- ✅ Dual Redundant TPS – Prevents idle fluctuations, hunting, and false error codes (P0638, P0697, P2100, P2119, P2135, P1516).
- ✅ 100% Factory Tested – Thermal cycling, airtightness, and full-stroke angle calibration verified.
- ✅ ISO 16750 Compliant – Meets environmental standards for automotive electrical/electronic equipment.
- ✅ Cross-Platform – Compatible across Chevrolet, GMC, Buick, Cadillac, Pontiac, Saturn, Hummer, Isuzu, and Saab.
- ✅ 100% New – Complete assembly with integrated TPS – not remanufactured, no core charge.
| Type | Part Number(s) |
|---|---|
| GM Main |
12595829, 12568580, 12615503, 12618735
|
| GM Alternate |
12580760, 12679524, 12572658, 12572650
|
| Aftermarket Cross |
LRD-TB336, 217-3150, ETB0017, S20050, 977-313, TB1021, 67-3021, CZM30B-72, VE72-1, 6E-3021
|
IMPORTANT: After replacing the Electronic Throttle Body (ETB) on GM 3.6L / 4.3L / 4.8L / 5.3L / 6.0L engines, a throttle self-learning / idle relearn procedure is REQUIRED. Failure to perform the relearn may result in unstable idle or check engine lights. If issues persist, use a professional diagnostic scanner (e.g., GM MDI / Tech2) to perform a "Throttle Body Relearn" or "Idle Learn".
| Step | Action |
|---|---|
| 1 | Disconnect the negative battery terminal for 5–10 minutes (clears old learned values). |
| 2 | Remove the air intake duct and disconnect the electrical connector (6-pin blade terminal). |
| 3 | Remove any coolant hoses attached to the throttle body (if equipped with throttle body heating). |
| 4 | Remove the four mounting bolts and old throttle body. |
| 5 | Discard the old gasket and clean the mating surface on the intake manifold. |
| 6 | Install a new gasket (strongly recommended – sold separately). |
| 7 | Install the new throttle body. Torque bolts to 8–10 Nm (6–7 lb-ft). |
| 8 | Reconnect coolant hoses (if equipped), electrical connector, and air intake duct. |
| 9 | Reconnect the battery. |
| 10 | Turn ignition ON (do not start engine) and wait 10 seconds. |
| 11 | Turn ignition OFF for 10 seconds. |
| 12 | Start the engine and let it idle for 5 minutes (do not touch accelerator). |
| 13 | Turn engine off for 30 seconds, then restart and drive normally. The ECU will complete adaptation automatically. |
- Pre-installation check: Inspect the throttle body for any defects. Verify the OE number and connector type (6-pin blade) before installation.
- Gasket requirement: A new mounting gasket is strongly recommended — gasket not included. A damaged or reused gasket may cause rough idle or check engine lights.
- Packing List: Electronic Throttle Body Unit (72mm bore, complete assembly with TPS and motor) × 1; Warranty Card × 1. (Gasket and installation hardware not included)