Engines
Frontier Trucks Parts is one of the leading suppliers of new, used, and rebuilt engines in the industry. We offer some of the best replacement engines and parts available today. We have been in business for over 15 years and pride ourselves on providing the highest quality products with excellent customer service. Our knowledgeable sales staff and same day shipping are here to get you back on the road quickly. Please feel free to search our site to learn more about our drop-in engines, long block engines, new & used engine components.
Watch an Engine Breakdown:

Meritor FF981 Spindle
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Tag No.
401-20940
Tag No.
401-20940
Part No.
A2 3111P3370
Part No.
A2 3111P3370
Side
Driver
Side
Driver
ABS
Yes
ABS
Yes
Truck Make
N/A
Truck Make
N/A
Axle Make
N/A
Axle Make
N/A
Axle Size
12000
Axle Size
12000

Mack 38,000LBS Axle Housing
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Tag No.
300-26750
Tag No.
300-26750
Part No.
19QF4414
Part No.
19QF4414
Suspension Type
Camelback
Suspension Type
Camelback
Service #
19QF4414
Service #
19QF4414
Truck Make
Mack
Truck Make
Mack
VIN #
N/A
VIN #
N/A
Position
Rear
Position
Rear
Spider Hole
8
Spider Hole
8
Cover Type
Welded
Cover Type
Welded
ABS
No
ABS
No
Torque Bracket #
None
Torque Bracket #
None
Seat Bracket #
Camelback
Seat Bracket #
Camelback
Wall Thickness
N/A
Wall Thickness
N/A
Inspected By
TS
Inspected By
TS

Eaton RS-404 Axle Housing
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Tag No.
300-26749
Tag No.
300-26749
Part No.
321318
Part No.
321318
Suspension Type
AG-380 Flex Air
Suspension Type
AG-380 Flex Air
Service #
322557
Service #
322557
Truck Make
N/A
Truck Make
N/A
VIN #
N/A
VIN #
N/A
Position
Rear
Position
Rear
Spider Hole
15+1
Spider Hole
15+1
Cover Type
Welded
Cover Type
Welded
ABS
Yes
ABS
Yes
Torque Bracket #
302226
Torque Bracket #
302226
Seat Bracket #
Noone
Seat Bracket #
Noone
Wall Thickness
9.5mm
Wall Thickness
9.5mm
Inspected By
TS
Inspected By
TS

Eaton Spindle
Price:
$811.00
$811.00
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Tag No.
401-20939
Tag No.
401-20939
Part No.
220SK139 1
Part No.
220SK139 1
Side
Passenger
Side
Passenger
ABS
Yes
ABS
Yes
Truck Make
N/A
Truck Make
N/A
Axle Make
Eaton
Axle Make
Eaton
Axle Size
22000
Axle Size
22000

Eaton E1200I Front Axle I-Beam
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Tag No.
409-11956
Tag No.
409-11956
Part No.
819185
Part No.
819185
Capacity
12000
Capacity
12000
Assembly #
825486
Assembly #
825486
Suspension C to C
33.5"
Suspension C to C
33.5"
Truck Make
Mack
Truck Make
Mack
Truck Model
N/A
Truck Model
N/A
Draw Key
Single
Draw Key
Single


