Dust Caps & Oil Caps for Trailer Hubs & Drums at Trailer Parts Superstore
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Dust Caps & Oil Caps for Trailer Hubs & Drums

Dust Caps & Oil Caps for Trailer Hubs & Drums

Trailer Parts Superstore sells zinc plated trailer grease/dust caps designed to meet a variety of applications. Caps feature a "press-in" design for quick installation. Thick steel construction for lasting durability. Grease caps with removable rubber center plugs can be used with hubs or spindles that have a built in grease zerk fitting. Clear PVC Oil Caps come with a rubber O-ring and removable center fill plug.




Click on the item titles below for complete product details

Quantity Description Price

CARRY-ON Dust Caps, 1.98" O.D. (1 pair) #120

CARRY-ON Dust Caps, 1.98" O.D. (1 pair) #120

Stock# 7115001
Carry-On metal dust caps have a 1.98" O.D. and are sold in pairs.

$6.59

DEXTER Dust Caps, 1.99" O.D. (1 pair) #K71-314-00

DEXTER Dust Caps, 1.99" O.D. (1 pair) #K71-314-00

Stock# 5331283
Dexter kit # K71-314-00 dust caps fit 7", 10" x 1-1/2" and 10" x 2-1/4" Dexter hubs/drums.
Includes: (2) 1.99" O.D. metal grease caps.

$7.35

DEXTER Dust Caps, 2.45" O.D. (1 pair) #K71-316-00

DEXTER Dust Caps, 2.45" O.D. (1 pair) #K71-316-00

Stock# 5331284
Dexter kit # K71-316-00 dust caps fit 12" x 2" Dexter hubs/drums.
Includes: (2) 2.45" O.D. metal grease caps.

$8.65

CARRY-ON Dust Caps, 2.441" O.D. (1 pair) #121

CARRY-ON Dust Caps, 2.441" O.D. (1 pair) #121

Stock# 7115002
Carry-On metal dust caps have a 2.441" O.D. and are sold in pairs.

$7.29

DEXTER Dust Caps, 2.72" O.D. (1 pair) #K71-318-00

DEXTER Dust Caps, 2.72" O.D. (1 pair) #K71-318-00

Stock# 5331285
Dexter kit # K71-318-00 chrome dust caps fit 12" x 2" eight bolt Dexter hubs/drums.
Includes: (2) 2.72" O.D. metal grease caps.

$9.13

CARRY-ON Dust Caps, 2.75" O.D. (1 pair) #122

CARRY-ON Dust Caps, 2.75" O.D. (1 pair) #122

Stock# 7115003
Carry-On metal dust caps have a 2.75" O.D. and are sold in pairs.

$8.99

RELIABLE Sure Lube 1.980" Grease Cap #GC-1980-01

RELIABLE Sure Lube 1.980" Grease Cap #GC-1980-01

Stock# 5500049
Fits 1.980" inside diameter Sure-Lube hubs, (1) per pack.

$7.25

TIEDOWN SuperLube 1.980" I.D. Hub/Drum Dust Cap #81168

TIEDOWN SuperLube 1.980" I.D. Hub/Drum Dust Cap #81168

Stock# 7125025
Zinc plated steel dust cap with removable rubber center plugs can be used on most recreational trailer wheel hubs. (1 Pair)

$7.99

LIPPERT Universal Super Lube 1.98" Dust Cap  #122067

LIPPERT Universal Super Lube 1.98" Dust Cap #122067

Stock# 5439264
Lippert Super-Lube Zinc Plated Steel Dust Cap can be used on most recreational trailer wheel hubs and drums. Designed for axle spindles with grease zerk fittings on the end.

$2.99

AIR-TIGHT 1.98" Stainless Steel Posi-Lube Air Cap #AT-3SS

AIR-TIGHT 1.98" Stainless Steel Posi-Lube Air Cap #AT-3SS

Stock# 7114001
AIR-TIGHT 1.98" diameter stainless steel Posi-Lube cap resists corrosion from saltwater environments.
Rubber center plugs not included.

$3.29

UFP Super Lube Zinc Plated Grease/Dust Cap 1.98" #34751

UFP Super Lube Zinc Plated Grease/Dust Cap 1.98" #34751

Stock# 5415090
UFP Super-Lube Zinc Plated Steel Dust Cap can be used on most recreational trailer wheel hubs and drums. Designed for axle spindles with grease zerk fittings on the end. Rubber plug #32640 sold separately. Fits 1.98" I.D. hubs & drums.

$1.49

TIEDOWN 1.980" I.D. Hub/Drum Dust Cap (1 Pair) #81167

TIEDOWN 1.980" I.D. Hub/Drum Dust Cap (1 Pair) #81167

Stock# 7125102
Zinc plated steel dust cap can be used on most recreational trailer wheel hubs. (1 Pair)

$3.29

TIEDOWN Super Lube Dust Cap Grommets (1 Pair) #81174

TIEDOWN Super Lube Dust Cap Grommets (1 Pair) #81174

Stock# 7125103
Tie Down Super Lube Grommets are intended to be used with Tie Down Engineering Super Lube grease caps. (1 Pair)

$3.29

DEXTER E-Z Lube Dust Cap & Plug, 1.99" O.D. (1 pair) #K71-315-00

DEXTER E-Z Lube Dust Cap & Plug, 1.99" O.D. (1 pair) #K71-315-00

Stock# 5331013
Dexter kit # K71-315-00 chrome dust caps fit 7", 10" x 1-1/2" and 10" x 2-1/4" Dexter hubs/drums. Removable center plug allows for easy access to spindle zerk fitting.

$9.73

VENTURE 52MM Metric Dust Cap with Insert

VENTURE 52MM Metric Dust Cap with Insert

Stock# 5421078
Venture 52mm metric dust caps have a rubber insert for easy access to grease fittings. Sold as each.

$2.63

AIR-TIGHT 2.44" Stainless Steel Posi-Lube Air Cap #AT-5SS

AIR-TIGHT 2.44" Stainless Steel Posi-Lube Air Cap #AT-5SS

Stock# 7114002
AIR-TIGHT 2.44" diameter stainless steel Posi-Lube cap resists corrosion from saltwater environments.
Rubber center plugs not included.

$4.99

DEXTER E-Z Lube Dust Cap & Plug, 2.45" O.D. (1 pair) #K71-317-00

DEXTER E-Z Lube Dust Cap & Plug, 2.45" O.D. (1 pair) #K71-317-00

Stock# 5331014
Dexter kit # K71-317-00 chrome dust caps fit 12" x 2" Dexter 5-Lug & 6-Lug hubs/drums. Removable center plug allows for easy access to spindle zerk fitting.

$11.14

LIPPERT Universal Super Lube 2.441" Dust Cap  #122064

LIPPERT Universal Super Lube 2.441" Dust Cap #122064

Stock# 5439272
Lippert Super-Lube Zinc Plated Steel Dust Cap can be used on most recreational trailer wheel hubs and drums. Designed for axle spindles with grease zerk fittings on the end.

$3.29

DEXTER E-Z Lube Dust Cap & Plug, 2.72" O.D. (1 pair) #K71-319-00

DEXTER E-Z Lube Dust Cap & Plug, 2.72" O.D. (1 pair) #K71-319-00

Stock# 5331015
Dexter kit # K71-319-00 chrome dust caps fit 12" x 2" Dexter 8-Lug hubs/drums. Removable center plug allows for easy access to spindle zerk fitting.

$11.14

AIR-TIGHT 2.73" Stainless Steel Posi-Lube Air Cap #AT-7SS

AIR-TIGHT 2.73" Stainless Steel Posi-Lube Air Cap #AT-7SS

Stock# 7114003
AIR-TIGHT 2.73" diameter stainless steel Posi-Lube cap resists corrosion from saltwater environments.
Rubber center plugs not included.

$5.49

LIPPERT Universal Super Lube 2.72" Dust Cap  #127300

LIPPERT Universal Super Lube 2.72" Dust Cap #127300

Stock# 5439278
Lippert Super-Lube Zinc Plated Steel Dust Cap can be used on most recreational trailer wheel hubs and drums. Designed for axle spindles with grease zerk fittings on the end.

$3.39

LIPPERT Universal Dust Cap Rubber Center Plug #122065

LIPPERT Universal Dust Cap Rubber Center Plug #122065

Stock# 5439263
Lippert Rubber Grommet Plugs will fit Tie Down Super Lube, Reliable Sure-Lube Caps and many others. Designed for axle spindles with grease zerk fitting on the end.

$1.99

UFP Super Lube 1.98" Dust Cap Rubber Center Plug #32640

UFP Super Lube 1.98" Dust Cap Rubber Center Plug #32640

Stock# 5415070
Rubber Center Plug fits UFP Super Lube Zinc Plated Steel Dust Caps (#34751). Sold as each.

$1.29

DEXTER E-Z Lube Dust Cap Plug (1 pair) #K71-320-00

DEXTER E-Z Lube Dust Cap Plug (1 pair) #K71-320-00

Stock# 5331016
Dexter kit # K71-320-00 rubber center plugs fit all Dexter E-Z Lube metal dust caps.

$6.48

UFP Super Lube Zinc Plated Grease/Dust Cap 2.328" #36189

UFP Super Lube Zinc Plated Grease/Dust Cap 2.328" #36189

Stock# 5415092
UFP Super Lube Zinc Plated Steel Dust Cap can be used on most recreational trailer wheel hubs and drums. Designed for axle spindles with grease zerk fittings on the end. Rubber plug #32640 sold separately. Fits 2.328" I.D. hubs & drums.

$1.99

KARAVAN 2.53" Auto-Flex Dust Cap O-Ring #200-00036-SP4

KARAVAN 2.53" Auto-Flex Dust Cap O-Ring #200-00036-SP4

Stock# 5419137
KARAVAN 2.53" Auto-Flex Dust Cap O-ring. Fits Auto-Flex dust caps which are commonly found on Karavan trailers

$0.53

KARAVAN 2.53" Dust Cap, (AutoFlex - Knott) #200-00036-SP3

KARAVAN 2.53" Dust Cap, (AutoFlex - Knott) #200-00036-SP3

Stock# 5419093
KARAVAN 2.53" Dust Cap (AutoFlex - Knott) is commonly found on Karavan trailers with the Knott-AutoFlex axles and seal hub units.

$3.68

RELIABLE Sure Lube 2.441" Plastic Grease Cap #2019.09

RELIABLE Sure Lube 2.441" Plastic Grease Cap #2019.09

Stock# 1041245
Fits 2.441" inside diameter hubs, (1) per pack.

$13.64

RELIABLE Sure Lube 2.716" Plastic Grease Cap #GC2716

RELIABLE Sure Lube 2.716" Plastic Grease Cap #GC2716

Stock# 5500115
Fits 2.716" inside diameter hubs. (1) per pack

$9.25

TIEDOWN Turbo Lube Hub Replacement Cap w/Center Plug #48399A

TIEDOWN Turbo Lube Hub Replacement Cap w/Center Plug #48399A

Stock# 7125001
Replacement cap with o-ring and center rubber plug to fit the Tie Down Engineering 'Turbo Lube' oil filled trailer wheel hub.

$8.99

TIEDOWN Vortex Hub Replacement Cap w/O-ring, 5 Lug #48355BV

TIEDOWN Vortex Hub Replacement Cap w/O-ring, 5 Lug #48355BV

Stock# 7125090
Replacement cap is specifically designed to work with a 5 Lug Tie Down Engineering 'Vortex' hub.  Cap comes with new o-ring and has a  thread diameter of 2.30".

$9.50

TIEDOWN Vortex Hub Replacement Cap w/O-ring, 6 Lug #48357BV

TIEDOWN Vortex Hub Replacement Cap w/O-ring, 6 Lug #48357BV

Stock# 7125091
Replacement cap is specifically designed to work with a 6 Lug Tie Down Engineering 'Vortex' hub.  Cap comes with new o-ring and has a  thread diameter of 2.82".

$9.50

DEXTER 35MM Nev-R-Lube Grease Caps (1 pair) #K71-644-00

DEXTER 35MM Nev-R-Lube Grease Caps (1 pair) #K71-644-00

Stock# 5331280
Dexter Nev-R-Lube grease caps fit 35mm Nev-R-lube hubs. Sold in pairs.

$12.94

DEXTER 42MM Nev-R-Lube Grease Caps (1 pair) #K71-643-00

DEXTER 42MM Nev-R-Lube Grease Caps (1 pair) #K71-643-00

Stock# 5331281
Dexter 42mm Nev-R-Lube grease caps fit Dexter Nev-R-lube hub/Drum (008-388-80). Sold in pairs.

$14.01

DEXTER 50MM Nev-R-Lube Grease Caps (1 pair) #K71-642-00

DEXTER 50MM Nev-R-Lube Grease Caps (1 pair) #K71-642-00

Stock# 5331282
Dexter 50mm Nev-R-Lube grease caps fit Dexter Nev-R-lube hub/Drum (008-385-80). Sold in pairs.

$13.52

DEXTER Replacement Oil Cap Plug #046-032-00

DEXTER Replacement Oil Cap Plug #046-032-00

Stock# 5331315
Dexter replacement oil cap plug for most 6k-15k dexter oil bath plastic caps.
Fits Dexter Parts: 021-035-00, 021-036-00, or 021-040-00

$1.03

DEXTER Replacement Oil Cap #021-088-00

DEXTER Replacement Oil Cap #021-088-00

Stock# 5331278
Dexter replacement oil cap for 9k, 10k & 13K 1-piece drums after 2009. Cap has 3-1/2" OD thread.
Includes: (1) clear plastic oil cap

$8.60

Replacement Oil Cap O-Ring for Dexter 021-088-00 #10-163

Replacement Oil Cap O-Ring for Dexter 021-088-00 #10-163

Stock# 1352037
Replacement Oil Cap O-Ring for Dexter 021-088-00 comes as a single.

$1.25

DEXTER Oil Cap, O-Ring & Plug Kit (1 pair) #K71-038-00

DEXTER Oil Cap, O-Ring & Plug Kit (1 pair) #K71-038-00

Stock# 5331035
Dexter kit # K71-038-00 fits 6k, 8k and 9k (before 10/89) screw-in 2-7/8"-12 thread hubs/drums.

$10.55

DEXTER Oil Cap, O-Ring & Plug Kit (1 pair) #K71-704-00

DEXTER Oil Cap, O-Ring & Plug Kit (1 pair) #K71-704-00

Stock# 5331322
Dexter kit # K71-704-00 fits Fits Dexter 9K, 10GD, and #13G drums. (after July 2009)

$20.01

DEXTER Oil Cap, O-Ring & Plug Kit (1 pair) #K71-148-00

DEXTER Oil Cap, O-Ring & Plug Kit (1 pair) #K71-148-00

Stock# 5331036
Dexter kit # K71-148-00 fits 9k (after 10-1-89) and 10k GD screw-in 4"-12 thread hubs/drums.

$16.78

Rockwell Oil Cap, O-Ring & Plug, 6K-8K RA # 8001

Rockwell Oil Cap, O-Ring & Plug, 6K-8K RA # 8001

Stock# 7108097
Rockwell Oil Cap, O-Ring & Plug fits 6K-8K RA drums with 2.875"-8 threads.
Includes: (1) clear plastic oil cap, (1) rubber center plug and (1) rubber o-ring.

$12.99

Rockwell Oil Cap, O-Ring & Plug, 9K-10K RA (Pre 96) #D10C

Rockwell Oil Cap, O-Ring & Plug, 9K-10K RA (Pre 96) #D10C

Stock# 7108098
Rockwell Oil Cap, O-Ring & Plug for 9K-10K Rockwell American drums pre 1996 with 3.5"-14 threads.
Includes: (1) clear plastic oil cap, (1) rubber center plug and (1) rubber o-ring.

$10.50

Rockwell Oil Cap, O-Ring & Plug, 9K-16K RA (Post 96) #12011-1

Rockwell Oil Cap, O-Ring & Plug, 9K-16K RA (Post 96) #12011-1

Stock# 7108099
Rockwell Oil Cap, O-Ring & Plug for 9K-16K Rockwell American drums post 1996 with 3.75"-8 threads.
Includes: (1) clear plastic oil cap, (1) rubber center plug and (1) rubber o-ring.

$9.95

Kodiak Oil Cap, O-Ring & Plug #Q1012kPCAP

Kodiak Oil Cap, O-Ring & Plug #Q1012kPCAP

Stock# 1561034
Kodiak Oil Cap fits 10k-12k Rotors with screw-in 3.553" thread.

$9.95

KODIAK 1.980" XL Prolube Cap & Body for 10" Disc #XLPROLUBE1980

KODIAK 1.980" XL Prolube Cap & Body for 10" Disc #XLPROLUBE1980

Stock# 1561020
Kodiak XL Pro Lube housing is made of anodized aluminum with a blue polycarbonate cap that makes it easy to visually check the hub cavity oil level. Includes a water tight O-ring seal.

$7.99

KODIAK XL Pro Lube Oil Bath Kit 1.980" Size for 5 Lug Hubs / Rotors

KODIAK XL Pro Lube Oil Bath Kit 1.980" Size for 5 Lug Hubs / Rotors

Stock# 1561046
XL PRO LUBE 1980 KIT. Works on 3.5K axle, spindle seal area must be O.D. 1.72 (1.68 requires different seal). Contains 2 oil caps, 2 seals, and 1 (8oz.) bottle of oil. Kodiak XL Pro Lube housing is made of anodized aluminum with a blue polycarbonate cap that makes it easy to visually check the hub cavity oil level. Includes water tight O-ring seals.

$32.95

KODIAK 2.440" XL Prolube Cap & Body for 12" Disc #XLPROLUBE2440

KODIAK 2.440" XL Prolube Cap & Body for 12" Disc #XLPROLUBE2440

Stock# 1561021
Kodiak XL Pro Lube housing is made of anodized aluminum with a blue polycarbonate cap that makes it easy to visually check the hub cavity oil level. Includes a water tight O-ring seal.

$7.99

KODIAK XL Pro Lube Oil Bath Kit 2.440" Size for 6 Lug Hubs / Rotors

KODIAK XL Pro Lube Oil Bath Kit 2.440" Size for 6 Lug Hubs / Rotors

Stock# 1561047
XL PRO LUBE 2440 KIT. Contains 2 oil caps, 2 seals, and 1 (8oz.) bottle of oil. Fits Kodiak 5200-6000lb integral hub. Kodiak XL Pro Lube housing is made of anodized aluminum with a blue polycarbonate cap that makes it easy to visually check the hub cavity oil level. Includes water tight O-ring seals.

$34.50

Aluminum Oil Bath Cap with O-Ring for 10" Drums #250-031620

Aluminum Oil Bath Cap with O-Ring for 10" Drums #250-031620

Stock# 5291153
2.11" O.D. threaded aluminum oil bath cap with O-Ring fits any five lug Reliable oil bath hub including the 1-1/16" straight hub and 10" Reliable drums.

$19.95

Aluminum Oil Bath Cap with O-Ring for 12" Drums #250-031621

Aluminum Oil Bath Cap with O-Ring for 12" Drums #250-031621

Stock# 5291154
2.48" O.D. threaded aluminum oil bath cap with O-Ring fits 12" Reliable hubs and drums.

$23.05

Rockwell Agriculture Dust Cap for 1.943" I.D. Trailer Wheel Hub #1524

Rockwell Agriculture Dust Cap for 1.943" I.D. Trailer Wheel Hub #1524

Stock# 7108100
Rockwell Agriculture Dust Cap for 1.943" I.D. wheel hub is generally found on an agriculture unit.

$3.99

Rockwell Agriculture Dust Cap for 1.96" I.D. Trailer Wheel Hub #1610

Rockwell Agriculture Dust Cap for 1.96" I.D. Trailer Wheel Hub #1610

Stock# 7108101
Rockwell Agriculture Dust Cap for 1.96" I.D. wheel hub is generally found on an agriculture unit.

$5.99

Rockwell Agriculture Dust Cap for 2.448" I.D. Trailer Wheel Hub #1513-1

Rockwell Agriculture Dust Cap for 2.448" I.D. Trailer Wheel Hub #1513-1

Stock# 7108102
Rockwell Agriculture Dust Cap for 2.448" I.D. wheel hub is generally found on an agriculture unit.

$5.99

Rockwell Agriculture Dust Cap for 3.153" I.D. Trailer Wheel Hub #1607

Rockwell Agriculture Dust Cap for 3.153" I.D. Trailer Wheel Hub #1607

Stock# 7108103
Rockwell Agriculture Dust Cap for 3.153" I.D. wheel hub is generally found on an agriculture unit.

$6.29