Vehicle	Sub Model	Engine
• 1991 GMC C2500	Sierra	4.3L V6 VIN: Z FI Naturally Aspirated GAS
• 1991 GMC C2500	Sierra	5.0L V8 VIN: H FI Naturally Aspirated GAS
• 1991 GMC C2500	Sierra	5.7L V8 VIN: K FI Naturally Aspirated GAS
• 1991 GMC C2500	Sierra	7.4L V8 VIN: N FI Naturally Aspirated GAS
• 1991 GMC C2500	Sierra SLE	4.3L V6 VIN: Z FI Naturally Aspirated GAS
• 1991 GMC C2500	Sierra SLE	5.0L V8 VIN: H FI Naturally Aspirated GAS
• 1991 GMC C2500	Sierra SLE	5.7L V8 VIN: K FI Naturally Aspirated GAS
• 1991 GMC C2500	Sierra SLE	7.4L V8 VIN: N FI Naturally Aspirated GAS
• 1991 GMC C2500	Sierra SLX	4.3L V6 VIN: Z FI Naturally Aspirated GAS
• 1991 GMC C2500	Sierra SLX	5.0L V8 VIN: H FI Naturally Aspirated GAS
• 1991 GMC C2500	Sierra SLX	5.7L V8 VIN: K FI Naturally Aspirated GAS
• 1991 GMC C2500	Sierra SLX	7.4L V8 VIN: N FI Naturally Aspirated GAS

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(1 Reviews)

Bosch 12014
Oxygen Sensor

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Bosch Oxygen Sensor - Upstream

Part Number: 3843-07098598

Notes: Oxygen Sensor

Features:

Saves money in fuel costs
Improves engine performance
Reduces air pollution
Prevents premature failure of the catalytic converter
Snug fitting OEM-style silicone boots ensure proper fit, function and appearance while providing extreme durability for long life

Position: Upstream

Condition: New

Shipping Options:
Ground

This Product Fits the Following:

Warehouse: C

Vehicle	Engine
• 1991 GMC C2500	4.3L V6
• 1991 GMC C2500	5.0L V8
• 1991 GMC C2500	5.7L V8
• 1991 GMC C2500	7.4L V8

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(Read reviews)

Bosch Oxygen Sensor - Upstream

Part Number: 3843-07098591

Notes: Universal Oxygen Sensor

Features:

Saves money in fuel costs
Improves engine performance
Reduces air pollution
Prevents premature failure of the catalytic converter
Snug fitting OEM-style silicone boots ensure proper fit, function and appearance while providing extreme durability for long life

Position: Upstream

Condition: New

Shipping Options:
Ground

This Product Fits the Following:

Warehouse: C

Vehicle	Engine
• 1991 GMC C2500	4.3L V6
• 1991 GMC C2500	5.0L V8
• 1991 GMC C2500	5.7L V8
• 1991 GMC C2500	7.4L V8

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(Read reviews)

Delphi Oxygen Sensor - Upstream

Part Number: 3843-05167880

Notes: Oxygen Sensor -- Wrench Size: 7/8 in.

Position: Upstream

Condition: New

Shipping Options:
Ground

This Product Fits the Following:

Warehouse: B

Vehicle	Engine
• 1991 GMC C2500	GAS

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(Read reviews)

Denso Oxygen Sensor - Upstream

Part Number: 3843-07010965

Notes: OE Style -- O.E. Quality Replacement Sensor

Features:

Designed to detect the amount of oxygen in the exhaust system
Constructed from high quality material
Features double protection layer, aluminum oxide trap layer, PTFE filter and stainless steel housing
Manufactured with precision to meet OE standards
Easy installation

Position: Upstream

Condition: New

Shipping Options:
Ground

This Product Fits the Following:

Warehouse: C

Vehicle	Engine
• 1991 GMC C2500	4.3L V6 VIN: Z FI Naturally Aspirated GAS
• 1991 GMC C2500	5.0L V8 VIN: H FI Naturally Aspirated GAS
• 1991 GMC C2500	5.7L V8 VIN: K FI Naturally Aspirated GAS
• 1991 GMC C2500	7.4L V8 VIN: N FI Naturally Aspirated GAS

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(Read reviews)

Denso Oxygen Sensor - Upstream

Part Number: 3843-07010964

Notes: Universal -- O.E. Quality Universal Replacement Sensor

Features:

Manufactured to the highest O.E. quality, guaranteed to fit right
Aluminum oxide trap, this extra layer helps to protect from silicone and lead poisoning
Stainless steel housing and porous Teflon filter all contribute to make a long life
Improved engine performance and greater fuel efficiency
Prevents premature sensor failure

Position: Upstream

Condition: New

Shipping Options:
Ground

This Product Fits the Following:

Warehouse: C

Vehicle	Engine
• 1991 GMC C2500	4.3L V6 VIN: Z FI Naturally Aspirated GAS
• 1991 GMC C2500	5.0L V8 VIN: H FI Naturally Aspirated GAS
• 1991 GMC C2500	5.7L V8 VIN: K FI Naturally Aspirated GAS
• 1991 GMC C2500	7.4L V8 VIN: N FI Naturally Aspirated GAS

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(Read reviews)

Standard Motor Products Oxygen Sensor - Upstream

Part Number: 3843-07041718

Notes: OXYGEN SENSOR

Position: Upstream

Condition: New

Shipping Options:
Ground

This Product Fits the Following:

Warehouse: C

Vehicle	Engine
• 1991 GMC C2500	4.3L V6 GAS
• 1991 GMC C2500	5.0L V8 GAS
• 1991 GMC C2500	5.7L V8 GAS
• 1991 GMC C2500	7.4L V8 GAS