Interchangeable With 49419 (2)

MOTORCRAFT BELT TENSIONER FOR FORD

BT91

$92.85

BELT TENSIONER

39052

$68.01

Technical Specifications

Part Number

49419

weight

1 lb

Marketing Description

Designed to meet or exceed OEM fit and performance, Accu-Drive technology features a round torsion-spring that dampens vibrations, compensates for belt wear and maintains constant tension and alignment, resulting in longer accessory component life.

Product Description - Invoice

Tensioner Assembly

Product Description - Long

Continental Accu-Drive Tensioner Assembly

Product Description - Short

Tensioner Assembly

Pulley Quantity

Pulley Surface Type

SMOOTH

Pulley 1 Bore Diameter

17.00 mm
0.67 in

Pulley 1 Flanged

NON-FLANGED

Pulley 1 Material

STEEL

Pulley 1 Outside Diameter

90.00 mm
3.54 in

Pulley 1 Width

29.50 mm
1.16 in

Weight

1.17 kg
2.57 lbs

Parts Interchange

Manufacturer	Part Numbers
DAYCO CORP	89629
FORD MOTOR CO	7C3Z6B209B
GATES RUBBER CO	39052
MOTORCRAFT (DIV OF FORD)	BT91
NAPA	39052

Vehicle Fitment

Make	Model	Years
FORD	F-250 SUPER DUTY	2008-2010
FORD	F-350 SUPER DUTY	2008-2010
FORD	F-450 SUPER DUTY	2008-2010
FORD	F-550 SUPER DUTY	2008-2010

This list of compatible vehicles and years is accurate, but it may not be complete. There may be additional vehicle applications and years compatible with this part not listed.