VT638901AJ #01B0B7
Loading Schematic
Model Numbers: VT638901AJ
Repair Parts for the Kobalt VT638901AJ Portable Single-Stage Oil-Bath Electric Air Compressor
Specifications
Pump Specs:
- Oil Capacity 8.5 oz
- Compressor Head Bolts torque specs: 175-225 IN / LBS
- Bearing Cap Bolts torque specs: 50-120 IN / LBS
- Flywheel Bolt torque specs: 225-250 IN / LBS
- If you are looking for FT / LBS then please use this formula: IN / LBS divided by 12 = FT / LBS
- The journal on the crankshaft is 1.76" and the biggest part of the rod is 1.89"
- If pump knocks, check the top of the rod to make sure it is not egged out by the wrist pin
Manuals
Click here to order and download the Owner's Manual
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Molded Ferrule, 1/2" #01AF4F
Price: $6.75Old Part Numbers: ST067300AV, HF004500AVThis Ferrule is placed inside a compression nut to help stop air leaks. Genuine OEM replacement part.Price: $6.75 -
Drain Valve, 1/4" NPT #1163AE
Price: $3.30Old Part Numbers: 072-0006Replace this air compressor drain valve if leaking or will not work. Prevent rust from ruining your tank by draining your tank daily. Keep an extra around for a spare. This...Price: $3.30 -
Price: $3.65 -
Crankcase Breather, VH & VT Pumps #01AA8D
Price: $17.50Crankcase breather assembly for air compressor models with threaded type crankcase for the breather. This assembly tightens into the crankcase; typically has an oil-level sight gauge.Price: $17.50 -
Compression Adapter Kit #05C165
Price: $32.58This compression adapter kit converts the new single-outlet air compressor pump head into 2 outlets. This will save you from having to purchase the expensive check valve for many older-style units...Price: $32.58 -
Air Filter Element Only #01AA99
Price: $19.36Element only for air filter assembly. Order 2 or 3 for spares. Replace this every 3-4 months if the compressor is used frequently. A clean filter allows your pump to operate at its max...Price: $19.36 -
Quad Valve Plate Assembly #01A8E6
Price: $78.88Old Part Numbers: TQ011300AJ, TQ900400AJ, VT470800AJQuad valve plate assembly for air compressors includes the valve plate with valves installed, upper and lower gaskets ONLY. This replaces part...Price: $78.88 -
Air Filter Assembly, V-Twin Single Stage #022A0A
Price: $22.04Old Part Numbers: 019-0239, 201793GS, D23190This Air Filter Assembly, V-Twin Single Stage is the same as the VH901700AV Filter, but has 1/2" MPT PLASTIC threads. One complete assembly. Includes...Price: $22.04 -
Nipple, 1/4" MPT x 1.5" Steel Pipe #05C5DC
Price: $1.40Old Part Numbers: AB-9053138, AB-9050373, ST070324AV, 90503731/4" MPT x 1.5" steel pipe nipple. Be sure to apply plumber's tape on the threads before installation.Price: $1.40 -
Campbell Hausfeld VT Air Compressor Pump Gasket Kit #01E117
Price: $56.61Old Part Numbers: VT470900AJCampbell Hausfeld VT Air Compressor Pump Gasket Kit includes crankcase gasket, cylinder gasket, valve plate o-ring gasket, bearing cover o-ring, and oil seal. For newer...Price: $56.61 -
On Sale
VT4823 Air Compressor Pump Replacement, Complete Assembly, Single-Stage, 1 - 2 HP #01AFAF
Now: $236.63Was: $253.32Old Part Numbers: VT482200AJ, VT480000KB, VT480000AV, VT481400AJ, VT470200KBComplete VT4823 air compressor pump with flywheel and air filter assembly. Single-stage, 1-2 HP. Has a 38mm stroke. Used on...Now: $236.63Was: $253.32 -
Compression Adapter, 1/2" Compression x 3/8" MPT, No Lead #100B90
Price: $8.85Old Part Numbers: 68-8-6Air compressor compression adapter, 1/2" compression x 3/8" MPT, no lead. Use this to attached the discharge tube to the pump's discharge outlet.Price: $8.85 -
Compression Sleeve, 1/2" #100B7E
Price: $1.20Old Part Numbers: 60-8, STD-329Air compressor brass compression sleeve (ferrule) for a 1/2" OD tube.Price: $1.20 -
Pressure Gauge, Side-Mount, 1.5" Face, 300 PSI, 1/8" NPT Low #116652
Price: $22.16Old Part Numbers: GA016300AV, GA016310AV, GA016303AV, GA016308AV, GA016313AVPressure Gauge. 0-300 PSI, 1/8" NPT, Right-mount, 1.625" face. Use Teflon tape on the threads when installing.Price: $22.16 -
Safety Relief Valve 1/4" MPT, 175 PSI, ASME #11632C
Price: $11.48Old Part Numbers: SRV250175, 1229O-175Air compressor safety relief valve, 1/4" MPT, 175 PSI, ASME. If your valve leaks below the pressure listed on the side of the valve, replace this vital safety...Price: $11.48 -
Air Regulator #01C005
Price: $48.09Adjustable air pressure knob assembly (gauge sold separately). Regulates the amount of air fed to your tools. If air leaks from the regulator, or when you turn the knob it doesn't adjust the PSI up...Price: $48.09 -
Check Valve Assembly, WL #11623E
Price: $12.02Old Part Numbers: CV221503SJ, CV220302AV, CV221500AJ, CV221500AV, CV221503AJCheck Valve, 1/2" compression x 1/2" MPT with hose barb fitting. The check valve is a one-way valve that prevents air from...Price: $12.02 -
A38 / 4L400 Classic V-Belt, 40" Long - VBG23300-VB #0E54E7
Price: $9.04Old Part Numbers: 4L400A38/4L400 classic v-belt for air compressors, 40" Long.Specifications A-type belt, 1/2" wide Outside Dimension: 40" "A" Belt Conversion: A38Price: $9.04 -
Oil Sight Glass #01B051
Price: $12.96Oil Sight Glass so you can keep an eye on the pump's oil level. Note: Order this item for models 4B246C and for pumps that have a threaded oil breather!Price: $12.96 -
Plascrew, Black 5/8" Long #01A9E6
Price: $3.85Plastite screw, 5/8" long. Screw for the plastic shroud, belt guard, etc. Note: Also used on models WL650103, WL651900, WL650703, WL651004, WL651000AJ.Specifications5/8" longPrice: $3.85 -
Pressure Switch, 130/155 PSI #01C007
Price: $93.06Air compressor pressure switch, 130/155 PSI. Tip: if your valve on the side (or bottom) of the switch is leaking constantly after the unit shuts off, do not order this part. Order check valve instead...Price: $93.06 -
Condor Pressure Switch Unloader Valve Kit, 90-degree, EV1WSi #01AAC1
Price: $85.01Old Part Numbers: CW210000AV, EV1WSI Condor unloader valve for MDR21130 and other popular pressure switches. Replace this valve if air constantly leaks from the valve while the unit is running, or if...Price: $85.01 -
Flywheel Shaft Key, 3/16" x 1" #01A8C8
Price: $6.66Old Part Numbers: PM004904AVKey for Flywheel, 3/16" x 1" length. Replace this if missing to keep your flywheel securely on the pump shaft.Price: $6.66 -
Hex Bushing, 1/4" MPT x 1/8" FPT #0E52D2
Price: $6.66Old Part Numbers: 31551/4" MPT to 1/8" FPT bushing adapter. If you need a 1/4" MPT fitting, but the part you have is only 1/8" MPT, then use this bushing adapter.Price: $6.66 -
Price: $12.54 -
Air Filter / Synthetic Blend Air Compressor Oil Maintenance Kit #11663A
Price: $43.15This handy maintenance kit includes a VH series air filter assembly and one (1) quart of high-quality synthetic blend lubricant to keep your air compressor running like a champ! Metal air filter with...Price: $43.15 -
Tube Fitting, 1/4" x 1/8" NPT Quick Connect #116696
Price: $15.12Old Part Numbers: ST119301AV, QR1/8" NPT x 1/4" nylon tube. This allows 1/4" nylon tubing to push to fit into this fitting. The 1/8" MPT threads screw into the unloader area of the air compressor...Price: $15.12 -
Replacement Electric Motor, 120/240V, RGB SPL Zhengli #01A992
Price: $366.87Old Part Numbers: MC013200AV, MC05502SJ, MC015500AJ, MC015502AJ, MC015502SJ, MC015502IP, MC019800IP, MC019800SJ, MC035601AV, MC027800AJ, MC035601AJ, MC035602SJ, MC018000IPBrand new OEM motor used on...Price: $366.87 -
Price: $33.68 -
Air Filter / Full Synthetic Air Compressor Oil Maintenance Kit #11663B
Price: $47.14This handy maintenance kit includes a VH series air filter assembly and one (1) quart of high-quality full synthetic lubricant to keep your air compressor running like a champ! Metal air filter with...Price: $47.14 -
Air Filter / Full Synthetic Air Compressor Oil Maintenance Kit #11663D
Price: $44.46This handy maintenance kit includes a VH series air filter element and one (1) quart of high-quality full synthetic lubricant to keep your air compressor running like a champ! For VT, TQ, and VH air...Price: $44.46 -
Price: $18.71 -
Bearing Cap Assembly, Basic #01A8E2
Price: $38.02Fits select VT47 & VT48 series pumps. Includes: Bearing Cap, Oil Seal, and O-ring.Price: $38.02 -
Price: $7.04 -
Air Compressor Pump Quad Head Fastener Kit #01A8E8
Price: $84.41Air Compressor Pump Quad Head Fastener Kit includes the bare head and head bolts. Order gaskets separately. Remember to tighten the bolts down to the proper torque specs as noted by the manufacturer.Price: $84.41 -
Set Screw, 1/4"-20 x 3/4" #01A976
Price: $15.95Old Part Numbers: ST012200AVWe have a limited supply of these screws available at our warehouse. The manufacturer is no longer making these screws, so get them while you can. Once sold out, they will...Price: $15.95 -
Bearing, 20mm (6204) #05AADA
Price: $20.58Old Part Numbers: ST084202AV-MATBall bearing, 20mm, 6204.Price: $20.58 -
Black Pipe Nipple, 1/4" MPT x 2" #0E5D81
Price: $4.751/4" male NPT x 2" black pipe nipple for air compressors.Price: $4.75 -
Price: $44.62 -
Air Filter / Synthetic Blend Air Compressor Oil Maintenance Kit #11663C
Price: $40.47This handy maintenance kit includes a VH series air filter element and one (1) quart of high-quality synthetic blend lubricant to keep your air compressor running like a champ! For VT, TQ, and VH air...Price: $40.47 -
Flange Nut, 3/8"-16 #01A962
Price: $5.63Old Part Numbers: STD-3353/8"-16 flange nut. Also used on models VT627000, VT629100, VT618202 and VT622001.Price: $5.63 -
2.56" x 5/8" Bore Single-Groove Pulley #01A990
Price: $38.56Old Part Numbers: PU015200AG, PUAK26X0625, PU015200AV2.56" OD, used on 120/240 volt models.Price: $38.56 -
5/8 Rubber Foot W/Stud #01AAD5
Price: $21.925/8" OD foot with 5/16-18 threaded stud. Nut is part#01A980Price: $21.92 -
Crankshaft Assembly with Conrods and Pistons #01D8C6
Price: $143.67New Crankshaft Assembly with Ball Bearings, Connecting Rods, and Pistons. For pumps that end in "AV" ONLY! Includes crankshaft, bearings, rings, conrods, and pistons. NOTE! This will not fit pump...Price: $143.67 -
Spinlock Nut, 5/16"-18 #01A980
Price: $3.85Old Part Numbers: ST146000AVSpinlock nut, 5/16"-18. This is the nut that fastens the electric motor and/or pump bolts to the base of the unit.Price: $3.85 -
Price: $14.86 -
Price: $18.87 -
Price: $72.32 -
Plug, 1/8"-27 Square Head #059484
Price: $6.66Old Part Numbers: ST022300AV, STD-2231/8" male NPT pipe plug. Used to plug accessory threads in the air compressor manifold, regulator, pressure switch (etc.).Price: $6.66 -
Price: $52.81 -
Price: $19.68