Pontiac Firebird Engine Harmonic Balancer Replacement

This part does not include the pulley.

Direct Replacement

It is designed for use with an externally balanced crankshaft.

It fits vehicles with an automatic transmission and without the supercharged option. Built for the US market; verify your vehicle's 8th VIN digit is K.

Mileage: 99,000 miles

Direct Replacement

Part Type: Solid Outer Diameter: 6.73 in ATP Number: 102075 ATP Availability: Available to Order Pioneer Number: DA-3071 Pioneer Availability: Available to Order Pioneer Supersession: Replaces DA-3071-HD

Part Type: Solid Outer Diameter: 6.73 in Supersession: Replaces DA-3071-HD

Hollow Back Part Type: Solid Outer Diameter: 6.74 in ATP Number: 102069 ATP Availability: Available to Order Pioneer Number: DA-3051 Pioneer Availability: Available to Order

Description: Hollow Back Part Type: Solid Outer Diameter: 6.74 in

Part Type: Solid Outer Diameter: 6.79 in ATP Number: 102037 ATP Availability: Available to Order Pioneer Number: DA-4551 Pioneer Availability: Available to Order

Part Type: Solid Outer Diameter: 6.50 in ATP Number: 102122 ATP Availability: Discontinued Pioneer Number: N/A Pioneer Availability: N/A ATP: Discontinuation / supersession date: 2020-11-24 ATP: Obsolete On: 2022-11-24 ATP: LifeCycle Change Log: Available to Order -> Discontinued ATP: LifeCycle Ticket Log: JNP-18368

Direct Replacement

Direct Replacement wo/Air Conditioning wo/Heavy Duty Cooling

Groove Qty. 4, 6 Part Type: Double Serpentine Outer Diameter: 7.52 in ATP Number: 102058 ATP Availability: Available to Order Pioneer Number: DA-3507 Pioneer Availability: Available to Order

Direct Replacement

Part Type: Solid Outer Diameter: 6.41 in ATP Number: 102063 ATP Availability: Available to Order Pioneer Number: DA-1890 Pioneer Availability: Available to Order

Description: Groove Qty. 4, 6 Part Type: Double Serpentine Outer Diameter: 7.52 in

Description: Groove Qty. 6; W/O Racing Balancer Part Type: Serpentine Outer Diameter: 7.52 in Without Racing Balancer

Diameter:6 3/4-in.; Finish:Natural; Material:Nodular Iron

Part Type: Solid Outer Diameter: 6.41 in

Groove Qty. 6 Part Type: Serpentine Outer Diameter: 7.07 in ATP Number: 102074 ATP Availability: Available to Order Pioneer Number: DA-2316 Pioneer Availability: Available to Order

Fits SB Chevy Engines;Internally Balanced; Diameter:6 3/4-in.; Finish:Natural; Material:Nodular Iron

Description: Groove Qty. 6 Part Type: Serpentine Outer Diameter: 7.07 in

Fits SB Chevy Engines;Internally Balanced; Diameter:8-in.; Finish:Natural; Material:Nodular Iron

Externally Balanced; Diameter:8-in.; Finish:Natural; Material:Nodular Iron

Single Groove Pulley

6.50 in. OD; External Balance; Black

7.50 in. OD; 0 Balance; Black

SFI Spec 18.1 Steel/Elastomer Neutral Balance 6.75 in. OD Black

SFI Spec 18.1; Steel/Elastomer; Internal Balance; 6.90 in. OD; Black

SFI Spec 18.1 Steel/Elastomer Internal Zero Balance 6.10 in. OD Specialty SBC Lightweight Black

SFI Spec 18.1; Steel/Elastomer; External Balance; 6.75 in. OD; Black

SFI Spec 18.1; Steel/Silicone Gel; Underdrive; Black

SFI Spec 18.1 Steel/Elastomer Internal Balance 8.0 in. OD Black

SFI Spec 18.1; Steel/Elastomer; External Balance; 8.0 in. OD; Removable C/Weight; Black

Bore Dia. Min/Max: 1.245 / 1.246 Degree Marking Range: 40 BTDC to 10 ATDC. Additional timing/degree amrks at 90, 180 and 270 Degree Markings: Yes Engine Balance: Internal Finish: No Finish Keyway: Single Length: 2.335 Material: Steel Mounting Hardware Incl.: No O.D.: 6-7/8" (6.875) Safety Rating: Not SFI Approved WT. in lbs.()=Rotating weight: 10.4 (6.9 Rwt) SMALL BLOCK GEN 1

SFI Spec 18.1; Steel/Silicone Gel [Running Design Change]; External Balance; 7.25 in. OD; Black

SFI Spec 18.1 Steel/Silicone Gel Internal Balance 7.25 in. OD Removable Hub Grade 12.9 Fasteners Black [Except 5.7L]

SFI Spec 18.1; Steel/Elastomer; Internal Zero Balance; 7.50 in. OD; Black

SFI Spec 18.1; Steel/Elastomer; Zero Internal Balance; 7.50 in. OD; Black

Bore Dia. Min/Max: 1.4818 / 1.4828 Degree Markings: No Engine Balance: Internal Finish: Black Zinc Keyway: None Length: 2.637 Material: Steel Mounting Hardware Incl.: No O.D.: 6-1/4" (6.25) Safety Rating: SFI 18.1 WT. in lbs.()=Rotating weight: 7.9 (5.3 Rwt) Incl. FIREHAWK

Bore Dia. Min/Max: 1.245 / 1.246 Degree Marking Range: 50 BTDC to 10 ATDC. Additional timing/degree marks at 90, 180 and 270 Degree Markings: Yes Engine Balance: Internal Finish: Black Zinc Keyway: Single Length: 2.335 Material: Steel Mounting Hardware Incl.: No O.D.: 6-1/4" (6.25) Safety Rating: SFI 18.1 WT. in lbs.()=Rotating weight: 7.9 (5.3 Rwt) GENERATION I LATE MODEL SMALL BLOCK, INT. BAL.

SFI Spec 18.1; Steel/Silicone Gel

Description: V-Belt; Groove Qty. 1 Outer Diameter: 6.685 in W/AC

; w/10% Underwire; Use w/crank flange hub 872015, 872016 or 872049 Race Balancer

Part Type: Solid Outer Diameter: 6.75 in

Description: 4 Bolt Hub; W/ 50 oz Weight Part Type: Solid Outer Diameter: 6.79 in

Bore Dia. Min/Max: 1.4818 / 1.4828 Degree Markings: No Engine Balance: Internal Finish: Black Zinc Keyway: None Length: 3.654 Material: Steel Mounting Hardware Incl.: No O.D.: 7-1/2" (7.500) Pulley Finish: Hard Coat Anodized Safety Rating: SFI 18.1 WT. in lbs.()=Rotating weight: 10.5 ( 7.7 Rwt)

Description: Groove Qty. 6, 4; 25% Underdrive Part Type: Double Serpentine Outer Diameter: 6.22 in

Part Type: Solid Outer Diameter: 6.75 in

7.52 in. Serpentine Groove Qty. 6 Street Performance

Bore Dia. Min/Max: 1.245 / 1.246 Degree Marking Range: 50 degree BTDC to 10 degree ATDC. Additional timing/degree marks at 90, 180 and Degree Markings: Yes Engine Balance: Internal Finish: Black Zinc Keyway: Single Length: 2.335 Material: Steel Mounting Hardware Incl.: No O.D.: 7-1/4" (7.250) Safety Rating: SFI 18.1 WT. in lbs.()=Rotating weight: 12.2 (8.1 Rwt) GENERATION I LATE MODEL SMALL BLOCK, INT. BAL.

Bore Dia. Min/Max: 1.245 / 1.246 Degree Marking Range: 40 degree BTDC to 10 degree ATDC. Degree Markings: Yes Engine Balance: Internal Finish: Black Zinc Keyway: Single Length: 3.9 Material: Steel Mounting Hardware Incl.: No O.D.: 7-1/2" (7.500) Safety Rating: SFI 18.1 WT. in lbs.()=Rotating weight: 13.1 (10.2 Rwt)

Description: Groove Qty. 6, 4; 10% Underdrive Part Type: Double Serpentine Outer Diameter: 6.62 in Large Pulley; 6.33 in Small Pulley

Bore Dia. Min/Max: 1.3722 / 1.3732 Degree Marking Range: 50 BTDC to 10 ATDC. Additional timing/degree marks at 90, 180 and 270 Degree Markings: Yes Engine Balance: Internal Finish: Black Zinc Keyway: Single Length: 2.837 Material: Steel Mounting Hardware Incl.: No O.D.: 6-5/8" (6.625) Safety Rating: SFI 18.1 WT. in lbs.()=Rotating weight: 10.4 (7.0 Rwt) 4 bolt pattern on 3.300 circle. Holes in pulley must be re-drilled. '69-later timing cover & pulleys may be required on Early Models.

Part Type: Solid Outer Diameter: 6.74 in

7.52 in. Serpentine Groove Qty. 6 SFI RACE

7.52 in. Double Serpentine Groove Qty. 4, 6 SFI RACE

Hub; Inner Shell; Damper Assembly; Outer Shell; Crank Pulley Bolts; Hardware

Hub; Inner Shell; Damper Assembly; Outer Shell; Crank Pulley Bolts; Hardware