A-Premium Mass Air Flow Sensor for 3.8L V6 OHV – 3‑Pin, 2‑Bolt Bolt‑On Replacement, ±2% Accuracy

A-Premium's 3-pin Mass Air Flow Sensor is a direct-fit replacement for 3.8L V6 OHV engines, delivering precise airflow readings and OEM-aligned construction without O-ring or mounting bolts.

This replacement MAF sensor is engineered to match original equipment geometry and electrical behavior for select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles that use the 3.8L V6. Built from reinforced PBT+GF30 polymer and aluminum alloy components, the unit has a bolt-on mounting style with two bolt holes and a three-pin terminal. It's designed to read intake air mass across a wide span and maintain stable performance under normal automotive conditions.

What vehicles and engine types will this sensor fit?

This sensor is intended for vehicles equipped with the 3.8L V6 OHV engine. It fits many late‑1990s to mid‑2000s Buick, Chevrolet, Oldsmobile, and Pontiac models when the original part uses a three-pin MAF arrangement and two-bolt mounting.

• Buick: LeSabre (1999–2005), Park Avenue (1999–2005), Regal (1999–2004), Riviera (1999)
• Chevrolet: Camaro (1999–2002), Impala (2000–2005), Lumina (1999), Monte Carlo (1999–2005)
• Oldsmobile: 88 (1999), Intrigue (1999), LSS (1999)
• Pontiac: Bonneville (1999–2005), Firebird (1999–2002), Grand Prix (1999–2003)

How accurate and robust are the sensor's measurements?

The sensor measures intake air mass from 0 to 480 kg/h with a stated measurement accuracy of ±2%, and it accepts up to 17 volts maximum supply. The internal sensing elements and reinforced housing materials help maintain repeatable output across normal operating ranges.

• Measuring range: 0–480 kg/h for wide operating coverage
• Accuracy: approximately ±2% under standard conditions
• Electrical: three-pin terminal compatible with original harnesses
• Maximum recommended supply voltage: 17 V

What are the physical and mounting details I need to know?

This is a bolt-on replacement that uses two bolt holes and a three-pin pin-style connector; mounting hardware and an O-ring are not included. The housing is constructed of glass-filled PBT and aluminum alloy for thermal endurance and dimensional stability.

• Terminal quantity/type: 3 pins
• Number of bolt holes: 2 — bolt-on installation
• Materials: PBT+GF30 polymer and aluminum alloy components
• Color/appearance: black sensor body with metal alloy fittings

Will this part match my vehicle's part number or aftermarket references?

The sensor cross-references several common OEM and aftermarket numbers used for the same 3.8L applications. Compare reference numbers before purchase to confirm compatibility with your vehicle and original part.

• Reference numbers: MAS0193, MA180, AHF50M05
• OEM/other references: 12568877, 19112543, 19179715, 24508238
• Additional cross-refs: 88961007, 2451052, 8650015

Who is this for? This A-Premium MAF sensor is for owners, mechanics, and restoration projects requiring a precise airflow sensor for the 3.8L V6 OHV lineup from the late 1990s to early 2000s. If your vehicle uses a three-pin MAF and two-bolt mounting pattern, and you need an aftermarket unit made to OEM-like form, fit, and function without extra seals or bolts, this part offers a robust, accurately measured replacement backed by A-Premium's one-year unlimited-mileage guarantee. Always verify vehicle year, engine displacement, and connector type before installation to ensure proper fitment.