Hayden Automotive Parts and Accessories

Fan Switch, Thermostatic, Radiator Probe, Adjustable 160-240 Degrees F, Kit

Part Number: HDA-3653

4.52 out of 5 stars ( 84 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Hose, Transmission Cooler, 11/32 in., 4.50 ft. Long, Rubber, Black, Each

Part Number: HDA-105

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Transmission Line Adapter, Brass, Snap-In, Each

Part Number: HDA-397

4.78 out of 5 stars ( 18 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Transmission Line Adapter, Brass, Male 5/8 in.-18 Inverted Flare, Pair

Part Number: HDA-390

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Idler / Tensioner Pulley

Part Number: HDA-5076

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Transmission Sender Adapter, Steel, Natural, Male 1/8 in. NPT to Female 1/8 in. NPT, Kit

Part Number: HDA-270

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Transmission Line Adapter, Brass, 1/2 in.-20 I.F., Chevy, GMC, Oldsmobile, Each

Part Number: HDA-393

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Cooler Fitting, 1/2 in. Hose Barb x 7/8-14 in., Each

Part Number: HDA-388

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Idler Pulley, Serpentine, Steel, Black, GM, Ford, Saturn, Hummer, Jeep, Each

Part Number: HDA-5979

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Sensor, Coolant Temperature, Brass, Natural, 1/8 in. NPT Thread, Each

Part Number: HDA-355

3.17 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Relay, Single Pole Double Throw, Replacement For 3647, 3651, 3652 Controls, Each

Part Number: HDA-3634

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Idler Pulley, Serpentine, Steel, Black, for use on Acura®, GM, Ford, Jaguar, Each

Part Number: HDA-5975

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Automatic Transmission Oil Cooler, Oil Cooler Accessories

Part Number: HDA-370

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Drop Ship
• Special Order

Fluid Cooler Mounting, Plastic, Natural, Kit

Part Number: HDA-251

Not Yet Reviewed

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Cooler Line Fittings, Transmission, 3/8 in. Hose Barb x 7/8-14 in., Pair

Part Number: HDA-387

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Accessory Drive Belt Idler Pulley, Idler / Tensioner Pulley

Part Number: HDA-5088

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Drop Ship
• Special Order

Idler / Tensioner Pulley

Part Number: HDA-5999

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Drop Ship
• Special Order

Automatic Transmission Oil Cooler, Oil Cooler Accessories

Part Number: HDA-382

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Drop Ship
• Special Order

Automatic Transmission Oil Cooler, Oil Cooler Accessories

Part Number: HDA-372

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Drop Ship
• Special Order

Automatic Transmission Oil Cooler, Oil Cooler Accessories

Part Number: HDA-371

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Drop Ship
• Special Order

Idler / Tensioner Pulley

Part Number: HDA-5058

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

• Drop Ship
• Special Order