Oil Bath seals with applications available for buses, trucks, trailers, tractors, and transit buses.
Boss Seals are manufactured to the highest quality standards and are tested on an ongoing basis at every
production run to ensure the quality will remain consistent.
Heavy duty oil bath seals do not need to cost a fortune to meet the performance expectations of todays fleets.
Boss Seals manufacturing facilities are ISO9001 and TS16949 certified to ensure reliable, consistent performance
will be achieved.
OEM performance expectations are met through testing and quality standards.
Broad coverage, and the ability to customize packaging, leads to an ideal private branding program that is
complete and comprehensive.
PART NUMBER CROSS REFERENCE
Boss Part # CR # FM # Stemco # Stemco # Stemco # Boss Part # CR # FM # Stemco # Stemco # Stemco #
B35059 35059 370001A 308-0836 382-8036 383-0136 B48690 48690 370195A N/A 392-9034 393-0134
B35066 35066 370001A 308-0836 382-8036 383-0136 B52658 52658 370069A 309-0948 392-9089 393-0148
B36285 36285 370012A N/A 382-8034 N/A B55177 55177 370120A N/A 392-9053 N/A
B38750 38750 370024A 309-0915 392-9099 393-0115
B38780 38780 370023A 309-0912 392-9099 393-0112 B370001 35066 370001A 308-0836 382-8036 383-0136
B39988 39988 370033A N/A 382-8039 383-8139 B370003 47697 370003A 309-0973 392-9131 393-0173
B40086 40086 370066A N/A 382-8001 383-0101 B370005 47690 370005A 309-0960 392-9132 N/A
B40133 40133 370036A 307-0713 372-7098 373-0113 B370019 43820 370019A 309-0965 392-9092 N/A
B40136 40136 370036A 307-0713 372-7098 373-0113 B370021 45160 370021A 309-0964 392-9088 N/A
B42623 42623 370065A 307-0723 372-7099 373-0123 B370022 45099 370022A 309-0903 392-9094 393-0103
B43752 43752 370037A 307-0744 372-7095 373-0144 B370023 38780 370023A 309-0912 392-9099 393-0112
B43764 43764 370048A 308-0864 382-8064 383-0164 B370025 46305 370025A 307-0743 372-7097 373-0143
B43800 43800 370020A N/A 382-8060 N/A B370031 42672 370031A 309-0904 392-9112 393-0104
B45010 45010 370178A N/A 392-9033 N/A B370033 39988 370033A N/A 382-8039 383-8139
B45099 45099 370022A 309-0903 392-9094 393-0103 B370036 40136 370036A 307-0713 372-7098 373-0113
B45103 45103 370131A 308-0856 382-8056 383-0156 B370047 34386 370047A 309-0935 392-9035 N/A
B45160 45160 370021A 309-0964 392-9088 N/A B370048 43764 370048A 308-0864 382-8064 383-0164
B46304 46304 370025A 307-0743 372-7097 373-0143 B370065 42623 370065A 307-0723 372-7099 373-0123
B46305 46305 370025A 307-0743 372-7097 373-0143 B370066 40086 370066A N/A 382-8001 383-0101
B47695 47695 370003A 309-0973 392-9131 393-0173 B370069 52658 370069A 309-0948 392-9089 393-0148
B47697 47697 370003A 309-0973 392-9131 393-0173 B370195 48690 370195A N/A 392-9034 393-0134
B47699 47699 370006A 309-0970 392-9087 N/A B376590 42623 376590A 307-0723 372-7099 373-0123
Boss Seal Applications
TRAILER APPLICATIONS Boss Seal # Boss Seal # Boss Seal # Inner Bearing
19,000# Standard Foge, Dana, Meritor, Eaton, Hendrickson B40136 B40133 B370036 663
P Spindle, Fruehauf, Eaton, Meritor TP, WP, HP, P22 B42623 B376590 B370065 HM518445
20,000# Meritor, Shuler B43752 665A
22,500# Meritor, Standard forge, Dana, Eaton, Hendrickson - N B46305 B46304 B370025 HM218248
STEER AXLE APPLICATIONS Boss Seal # Boss Seal # Boss Seal # Inner Bearing
12,000# Meritor, Eaton, Ford, Freightliner, Kenworth, Navistar, Peterbilit, Volvo B35066 B35059 B370001 HM212049
GMC F120 B36285 HM212047
12,000# Mack B39988 B370033 641, 049
12,000# Meritor Transit Bus B40086 B370066 6386, 6379
16,000# Ford, Navistar, Mack, Meritor, Kenworth, Peterbilt, Volvo B43764 B370048 6461A
Mack Early Models B43800 5760, 6461
9,000# Navistar, FA109 cast '79 & up B45103 641
DRIVE AXLE APPLICATIONS Boss Seal # Boss Seal # Boss Seal # Inner Bearing
15,000#, Ford, Meritor F-series B370047 33287
17,000# or 34,000# GMC, Navistar B38750 47686
34,000# Eaton, Ford, Navistar B38780 B370023 47686
44,000# Mack B370031 HM516449A
38,000#, 40,000#, 42,000# Ford, Eaton, GMC, Navistar B370019 598
Early Model Meritor Transit Bus B45010 749A, 6559
34,000# Mack B45099 B370022 580, 582
19,000# Eaton, Navistar, Ford, GMC B45160 B370021 594A
38,000# Mack, GMC, Eaton, Meritor B370005 594A, 598A
38,000#, 46,000# Eaton, Freightliner, Paccar, Navistar, Volvo B47697 B47695 B370003 594A, 598A
38,000# Eaton, Meritor, White B47699 681A, 683
Meritor Transit Bus B48690 B370195 6559, 6580
50,000#, 60,000# Mack B52658 B370069 687, 780
Mack Early B55177 782
