Wilwood 140-12099-BK is a D154 front caliper kit that bolts on as a lightweight alternative to the OE cast iron "Metric" calipers used on a wide range of factory disc brake equipped mid size GM cars and small trucks beginning in 1978. The two-piston floating calipers have forged billet aluminum bodies, stainless steel pistons and high-temperature seals, finished in black powder coat. They mount in the stock location over the stock rotors and use original style OE D154 brake pads with an OE M10-1.5 banjo bolt brake line mounting. Each caliper has two 1.62 in stainless steel pistons for 4.12 in² of piston area.
Notes:
- No vehicle compatibility listing is published for this kit. Confirm the vehicle uses the OE GM Metric front caliper before ordering.
- Line kits for this kit: 220-12104, 220-12105, 220-12106 and 220-12107 (sold separately).
- The calipers can be used with most wheels that clear the OE calipers.
- Other finishes of this kit: 140-12099-R (red calipers).
Included:
- D154 calipers, left and right (120-11872-BK)
- BP-10 brake pads
Specifications:
- Brand: Wilwood
- Part Number: 140-12099-BK
- Kit Type: D154 Front Caliper Kit
- Caliper: D154
- Caliper Part Number: 120-11872-BK
- Caliper Finish: Black Powder Coat
- Piston Count: 2
- Piston Bores (in): 1.62, 1.62
- Piston Area (in²): 4.12
- Piston Type: Stainless
- Mount Type: Floating
- Brake Pad Plate: D154
- Pad Area (in²): 8.7
- Pad Volume (in³): 2.9
- Pad Compound: BP-10
- Brake Line Mounting: OE M10-1.5 banjo bolt
- O-ring Kit: 130-4346
- Replacement Piston: 200-11794
- Bleed Screw Kit: 220-0627
- Line Kits Needed: 220-12104, 220-12105, 220-12106, 220-12107
FAQ
What does Wilwood 140-12099-BK fit?
It replaces the OE cast iron Metric front calipers used on many factory disc brake equipped mid size GM cars and small trucks beginning in 1978. No year-by-year vehicle listing is published for this kit, so confirm the vehicle uses the Metric caliper before ordering.
Does the kit use the stock rotors and brake pads?
Yes. The calipers mount in the stock location over the stock rotors and use original style OE D154 brake pads. The kit comes with BP-10 pads.
What size are the caliper pistons?
Each caliper has two 1.62 in stainless steel pistons, giving 4.12 in² of piston area per caliper.
Are brake lines included?
No. Line kits 220-12104, 220-12105, 220-12106 and 220-12107 are specified for this kit and sold separately. The calipers use an OE M10-1.5 banjo bolt brake line mounting.
What caliper finishes are available?
This kit has black powder coat calipers. Other finishes of this kit: 140-12099-R (red calipers).

