Engine Kits

Clevite CB1238P Rod Bearings 1980-20 GM, Isuzu, & Jeep
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Clevite CB1238P Rod Bearings 1980-20 GM, Isuzu, & Jeep



Part #: CB1238P
List Price: $6.28
Our Price: $3.84
You Save: $2.44



General Motors Clevite 77, Tri-Metal Connecting Rod Bearing fits the following:
173 cid 2.8l Chevrolet v6 cylinder 1980-1993,
173 cid 2.8l Chevrolet lpg v6 cylinder 1987-1989,
173 cid 2.8l Chevrolet meth v6 cylinder 1987-1989,
189 cid 3.1l Chevrolet v6 cylinder 1988-2005,
189 cid 3.1l Chevrolet turbocharged v6 cylinder 1989-1990,
189 cid 3.1l Chevrolet lpg v6 cylinder 1988-1993,
189 cid 3.1l Chevrolet meth v6 cylinder 1988-1993,
189 cid 3.1l l64 Chevrolet flex v6 cylinder 1993,
207 cid 3.4l l32 Chevrolet v6 cylinder 1993-1995,
207 cid 3.4l la1 Chevrolet v6 cylinder 1996-2005,
207 cid 3.4l lq1 dohc Chevrolet v6 cylinder 1991-1997.

isuzu Clevite 77, Tri-Metal Connecting Rod Bearing fits the following:
2827cc 2.8l ll2 Chevrolet v6 cylinder 1989-1991,
3137cc 3.1l cpc (lg6) Chevrolet v6 cylinder 1991-1994.

jeep Clevite 77, Tri-Metal Connecting Rod Bearing fits the following:
173 cid 2.8l Chevrolet v6 cylinder 1984-1987.

Clevite 77, Tri-Metal Connecting Rod Bearing fits the following is a steel backed bearing witha in intermediate layer of copper-lead alloy and a electro-plated lead-base overlay. percision undersizes are not resizable.

Clevite connecting rod bearing part number: cb1238p  (standard).

Clevite 77 TriMetal Rod bearings have been the industry standard since the first patent on the cast, copper, lead composition decades ago. The success and notoriety Clevite 77 has earned on the track proves the commitment to excellence maintained by all who contribute to the Clevite 77 brand. This track success provides Clevite 77 the ultimate proving ground for technologies that yield results in all passenger car and light vehicle applications.

Engineering quality engine bearings involves a number of interdependent factors. These points are just a few of the advantages Clevite 77 TriMetal Rod bearings:

It takes Three Layers to be Number One, and Clevite 77 TriMetal are it !

Seizure Resistance:
TriMetal bearings have significantly greater seizure resistance than bi-metal bearings, by as much as 40%.
Load Capacity:
TriMetal bearings can withstand much higher loads for longer periods of time as compared to bi-metal bearings, over 60% higher.
Embedability & Conformability:
The overlay on a TriMetal bearing offers a far more forgiving surface than bi-metal bearings. These features may not be as critical during OE assembly as they once were, but they do offer additional protection that can be extremely beneficial in an engine that is poorly maintained.
Durability:
Clevite 77’s TriMetal bearings not only exceed light vehicle OE durability requirements of 150,000 miles, they also exceed heavy vehicle OE durability requirements of 300,000 miles.
Tolerances:
Because the surface layer of a TriMetal bearing adds an additional manufacturing step, Clevite regularly hold wall sizes to within .0005” as compared to a bimetal that can be held to within .0003”. This stack up of tolerances has nothing to do with quality,  suitability, or service life.
Wear Resistance:
While the silicon in the bi-metal material does contribute to slightly improved wear resistance as compared to the Babbitt surface layer of a TriMetal material, it’s at the direct expense of embedability and conformability.

material: TM-77
min. std. shaft diameter: 1.9984"
50.7594mm
max. std. shaft diameter: 1.9994"
50.7848mm
min. vert. oil clearance: 0.0005"
0.0127mm
max. vert. oil clearance: 0.0035"
0.0889mm
max. wall: 0.0623"
1.5824mm
min. brg. o.d. or housing bore: 2.1245"
53.9623mm
max. brg. o.d. or housing bore: 2.1255"
53.9877mm
max. length: 0.7205"
18.3007mm


competitor interchanges
qty
comp qty
comp part no.
comp name
1
6
6b1238p-std
acl
1
1
cb1238p
clemex
1
1
cb1238p
hi-tech
1
6
cr605si
king
1
6
bb285j
mahle
1
1
6782cp
mcquay-norris inc.
1
1
2995cap
michigan engine bearings
1
1
4020a
sealed power
1
6
6-4020a
sealed power
1
1
4020ap
sealed power
1
6
6-4020ap
sealed power
1
1
cb1238al
trw
1
1
vpr91939
vandervell america inc
*part of a combination interchange requiring multiple parts competitor parts
when installing any bearing
do not attempt to polish the bearing running surface with any type of abrasive pad or paper.
bearing overlay layers are extremely soft and thin, typically .0005” on high performance parts.
these thin layers can easily be damaged or removed by abrasive media. because the overlay layer is electroplated,
it may exhibit microscopic plating nodules that make it feel slightly rough.
the nodules are the same material as the rest of the plated layer and will quickly be flattened by the shaft.
Bearing Material Tri metal, TM-77
Bearing Usage Direct replacement
Brand Clevite Engine Parts
Chamfered Bearing No
Dowel Pin Hole No
Grooved Bearing No
Part Type Rod Bearings
Product Line Clevite P-Series Rod Bearings
Quantity Sold individually.