51-A21 #01A192
Loading Schematic
Model Numbers: 51-A21
Click here for a parts breakdown
Extra Details
- Very similar to the B4900.
- Difference in aftercooler design.
- This pump is obsolete, yet many parts are still available.
- If whole pump is needed, order the B4900 on previous page.
- For specs, click on B4900 pump on previous page.
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B4900 Head Gasket Kit #05BF3E
Price: $175.70B4900 Head Gasket Kit. Kit includes the head gasket, inner valve plate gasket, cylinder gasket, two intercooler gaskets, and discharge tube adapter gasket (total of 6). A little silicone gasket cement around the outer edges helps. NOTE: Due to the...Price: $175.70 -
Oil Seal, B3000 / B3800 / B3801 / T29S Air Compressor Pumps #05C1B9
Price: $6.30Old Part Numbers: AB-9163010, 046-0217, 9163010, ABP-9163010Crankcase oil seal for B3000, B3800, B3801, T16, and T29S model air compressor pumps. Need oil? Click here for synthetic and synthetic-blend air compressor oil to keep your compressor...Price: $6.30 -
Price: $6.12 -
BOLT M8 X 30MM LH THRD #05C1A7
Price: $3.72Old Part Numbers: 059-0191 Flywheel Bolt. Fits pump models: B3000, B3800, B3801, T16, T29Price: $3.72 -
Head Gasket, B4900 / T29S Pump #048AD6
Price: $47.48We recommend ordering the gasket kit, as it will save you money and will ensure that you have all of the head gaskets. We always recommend replacing all head gaskets at the same time, as the other gaskets will have been compromised once the head is...Price: $47.48 -
Valve Plate Assembly, B4900 #048AA8
Price: $99.78Old Part Numbers: 6210717280Valve plate assembly (includes inner gasket and valves). If air leaks out of the intake filter or if the compressor just isn't performing like it should, order this kit. A loss of pressure or slow pressurization is...Price: $99.78 -
Bearing Insert #048AD0
Price: $47.65Brg. Insert for connecting rod. Qty. 2 Inserts for 1 Rod. If you need to replace Inserts for both rods, then order qty. 4.Price: $47.65 -
Hi Pressure Piston #048AB6
Price: $102.98Old Part Numbers: 6222727900Hi pressure piston only. (order wrist pin and retainers below if needed)Price: $102.98 -
Gasket #048B86
Price: $37.87Old Part Numbers: 4950100Torque to 27 lbs. Older gasket may have had 8 bolt holes. The newer gasket now has 12 bolt holes.Price: $37.87 -
Price: $24.38 -
B4900A Air Compressor Pump Rebuild Kit #048AB2
Price: $294.30Old Part Numbers: 2901323156, B4900AOVHLKITAir Compressor Pump Rebuild Kit for B4900A pump, includes complete gasket kit, ring set (for LP and HP pistons), oil seal, and conrod insert bearings. Note: Does not include the valve plate assembly or the air...Price: $294.30 -
Connecting Rod Assy. (incl. 4, Bolt, Nut, Splash) #048AB4
Price: $87.80Old Part Numbers: 047-0064 Connecting rod for either hi or low pressure piston. (Order bearing if needed)Price: $87.80