Axle Nuts
Plaza can supply you with axle spindle nuts from Meritor and Stemco. Stemco’s Pro-Torq axle nuts may provide the highest degree of precision with wheel bearing adjustments and also the greatest ease of use. You can save yourself time by going immediately to Stemco's list of the most popular wheel seals with a cross reference to the compatible Pro-Torq nuts. Below you will find the Stemco sizes currently in stock along with the part numbers for the compatible outer wheel bearing cone and bearing cups and the axle models which these nuts will fit.
Traditionally wheel ends require an inner nut, an outer nut, and washer all of which contribute to lock the outer wheel bearing in place. Outer nuts are also known as “jam nuts” since the most torque is used to tighten them. Various methods are used for these nuts and washers. The Pro-Torq uses a “keeper” to lock the nut in place. Meritor’s “pdf” catalogue of axle nuts and washers includes cross references to OE part numbers and axles and can be searched to find a replacement Meritor part number. A list of Meritor axle nuts currently in stock can be found at the bottom of this page
Traditionally wheel ends require an inner nut, an outer nut, and washer all of which contribute to lock the outer wheel bearing in place. Outer nuts are also known as “jam nuts” since the most torque is used to tighten them. Various methods are used for these nuts and washers. The Pro-Torq uses a “keeper” to lock the nut in place. Meritor’s “pdf” catalogue of axle nuts and washers includes cross references to OE part numbers and axles and can be searched to find a replacement Meritor part number. A list of Meritor axle nuts currently in stock can be found at the bottom of this page
Other Helpful Information
- Most Popular Pro-Torq Applications
- Pro-Torq Highlights
- Stemco's Pro-Torq Catalogue
- Pro-Torq Installation Instructions
- How to Remove a Pro-Torq "Keeper"
- Meritor Axle Spindle Nuts & Washers Catalogue
- TMC Recommendation for Standard Axle Nut Installation
- Meritor instructions for bearing adjustment with standard axle nuts
Pro-Torq Axle Spindle Nut
Inner Axle Nut for Mack Drive Axle
Outer Axle Nut for 17-18,000 lb Trailer Axles
Lock Washer for 17-18,000 lb Trailer Axles
Star Washer for Eaton Axles
Combined Inner+Outer Nut for Fruehauf Pro-Par Trailer Axles
Stemco Axle Spindle Nuts Currently in Stock
Part Number Outer Bearing Cone/Cup pn Thread Sizes
| Trailer Axles |
| 447-4723 | HM518445/HM518410 | 3.48 - 12 |
| DanaSpicerEaton | P22 (after 1/1/06) |
| Others | Fruehauf Propar, Hendrickson HP, Ingersoll F24H, Meritor TP |
| 447-4743 | HM212049/HM212011 | 2 5/8-16 |
| DanaSpicerEaton | D20, D21, D22, DD21, DD22, K21, K22, K25, K30, C, C2, CD, CD2, CE |
| DanaSpicerEaton | ESA225J, EST, EST225J, EST230J, ETA230C, ETA225D, ETA225J |
| DanaSpicerEaton | H23L, H25R, HCE, HJ, HJE, J, JE, JH, LA15, T18C, 20L77, 22L, 22R |
| DanaSpicerEaton | 23L, 23R, 25R |
| Meritor | RL, RQ, TK, TKL, TKLD, TL, TLD, TN, TND, TQ, TQC, TQD |
| Other | Hendrickson HL, Ingersoll A22T,Standard Forge A25, A26, 17-18000# |
| Steer Axles |
| 448-4836 | 3782/3720 | 1 1/2 -12 |
| Meritor | FD900, FD901, FD961, FE900, FE903, FF900, FF901, FF921, FF931 |
| Meritor | FF932, FF941, FF942, FF943, FF944, FF952, FF961, FG941 |
| Navistar | I100S |
| 448-4837 | 3782/3720 | 1 1/2 - 18 |
| Other | Meritor FE931, Ford SIFCO 12,000#, Ford 6,000# |
| DanaSpicerEaton | EFA12F4. EFA13F5. E1200I, FE931, 12K, 13.2K |
| 448-4838 | 3782/3720 | 1 1/2 - 12 |
| Meritor |
| 448-4839 | 45220/45280 | 1 5/8 - 12 |
| Mack | FAW12, FAWL12, FAW537, FAW5371, FAW14.3, FAW538, FAW10.5 |
| Mack | FAW536, FAW5361 |
| 448-4864 | 5552A/555S | 2 - 12 |
| Mack | FA18, FAW18, FAW616, FA616, FA20, FAW20, FAW617, FA617 |
| Mack | FAW16, FAW614 |
| 448-4865 | 552A/555S, 3979/3720 | 1 3/4 - 12 |
| Meritor | FL |
| Drive Axles |
| 449-4904 | 563/567, 572/575 | 2 7/8 - 12 |
| Mack | S34, S38, S44, S462, SW56, SW57, SW441 |
| 449-4973 | 580/572 | 3 1/4 - 12 |
| DanaSpicerEaton | W230S, W460S, D380, D381, D380-P, D400, D401, D400-P |
| DanaSpicerEaton | D440-P, D401-P, D402-P, D451-P, D460-P, D480-P |
| DanaSpicerEaton | D485-P, DP380, DP381, DP380-P, DP381-P, DP340, DP341, DP400-P |
| DanaSpicerEaton | DP401-P, DP440-P, DP460-P, DP480-P, DP550, DP580-P, DP650-P |
| DanaSpicerEaton | DS340, DS341, DS344, DS380, DS381, DS380-P, DS381-P, DS400-P |
| DanaSpicerEaton | DS401-P, DS404-P, DS400-P, DS460-P, DS480-P, DS454-P,DT340, DT341 |
| DanaSpicerEaton | DT380, DT381, DT380-P, DT381-P, DT400-P, DT440-P, DT460-P,DT480-P |
| DanaSpicerEaton | 1911, 1919, 2011, 19500, 20500, 20501 |
| DanaSpicerEaton | RS341, RS381, RS402, RS401, RS460, RS461, RT402, 44, 440P, 480P |
| Mack | 50,000# |
| Navistar | 14227, 14308, 14309, 14311, 14338, 14342, 14943, 14348, 14364, 14 |
| Meritor | Q, QHD, QHR, QT, R, RL170, RS, RT, S, S170, S280 |
| Meritor | SQ100, SQ100-P, SQD, SQDD, SSHP, SP, STD, STDD, STHD, SU170 |
| Meritor | SU270, SU280, SUHD, SW170, SW270, SW280, SQHD, SQHP, SQHR |
| Meritor | SQR, SQW, SR170, SR270, SR280, SRD, SRDD, SRHD, SSHD |
| 449-4975 | 3984/3920, 39590/39520 | 2 5/8 - 12 |
| DanaSpicerEaton | J190S |
| Others | Ford, GMC, Navistar, 19,000 lb. Rear School Bus |
Meritor Axle Nuts and Washers In Stock
| | Axle Type | PN | ID/Thread Size | OD |
| |
| Drive |
| | Eaton 32M-MR, -34M, -MF, 34D-DT-RT, 17800-17801 |
| | Outer nut | R002462 | 2.63 - 12 | 3.44 |
| | Washer | R002461 | 2.63 | 4.0 |
| | Washer | R002467 | 3.25 | 4.75 |
| | Eaton 38R3, RP-RT, 42R3-RP-RT, 18800, 18801-02-03 |
| | Washer | R002464 | 3.0 | 4.5 |
| | Ford 18,000 LB. Rear Axle |
| | Inner nut | R006142 | 2.63 - 12 | 3.5 |
| | Mack 50,000 lb |
| | Inner nut | R002303 | 3.25 - 12 | 4.0 |
| | Washer | R002304 | 3.28 | 4.34 |
| | Meritor "F" Series |
| | Inner nut | R002417 | 2.5 - 16 | 3.5 |
| | Washer | R002424 | 3.0 | 4.25 |
| | Meritor "Q" & "R" series for SQHD & R170 drive axles |
| | Outer nut | R002305 | 3.25 - 12 | 4.0 |
| | Navistar 17,000-17,500 and 30,000 lb axles |
| | Inner/outer | R004857 | 2.5 - 12 | 3.25 |
| | Washer | R004881 | 2.53 | 3.75 |
| | Navistar 29,000 - 50,000 lb axles |
| | Washer | R006141 | 3.25 | 4.75 |
| |
| Front |
| | Meritor FD-900, FD-901, FE-900, FF-901, FF931 axles |
| | Inner nut | R002299 | 1.5 - 12 | 2.63 |
| | Outer nut | R002296 | 1.5 - 12 | 2.25 |
| | Washer | R002297 | 1.53 | 2.75 |
| | Washer | R002298 | 1.52 | 3.0 |
| | Meritor FE-970 & "E" series |
| | Washer | R002301 | 2.25 | 3.31 |
| |
| Trailer |
| | Fruehauf "PRO-PAR" axle & Meritor Early model TP axle |
| | Cotter pin | R001559 |
| | Inner/outer | R002550 | 3.5 - 12 | 4.75 |
| | Washer | R001561 | 3.5 | 5.06 |
| | Meritor RL, RN, RQ, TK, TKL, TKN axles - positive |
| | Inner nut | 1227B678 | 2.38 - 16 | 3.81 |
| | Inner nut | R002128 | 2.38 - 16 | 3.81 |
| | Outer nut | R001251 | 2.38 - 16 | 3.25 |
| | Washer | R001252 | 2.41 | 3.81 |
| | Meritor, Eaton, Kershaw & Std. Forge 17,000 & 18,000 lb |
| | Inner nut | R000540 | 2.63 - 16 | 3.81 |
| | Outer nut | R000572 | 2.63 - 16 | 3.25 |
| | Washer | R002237 | 2.64 | 4.03 |
| | Washer | R000573 | 2.64 | 3.94 |
| | Meritor, Spicer & Std. Forge 11,000 lb axles |
| | Inner/outer | R001087 | 1.5 - 12 | 2.25 |
| | Washer | R001000 | 1.5 D hole | 2.88 |
Pro-Torq Axle Spindle Nuts
