Sierra 18-1848 Volvo Penta OMC Marine Exhaust Manifold 4.3L V6 3857656 3852338-7
By Sierra
PART #18-1848
WARRANTYLimited Lifetime
SHIPPING DIMS16" x 10" x 7"
$268.28 USD
Free Shipping to the Contiguous 48 US States
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4 in stock
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Product Description
Sierra 18-1848 marine exhaust manifold for many 1990 and newer OMC and 1993 and newer Volvo Penta 4.3L V6 marine gas engines (GM / Chevrolet V-6). 4.3GS 4.3GL 4.3GI. This manifold will fit either side of the engine and accepts all factory original accessories and fittings. Each purchase is for one manifold.

Riser mating bolt dimensions are 3-7/8" (98.4mm) by 2-19/32" (65.9mm) bolt center-to-center.

This part is new and high-quality cast iron construction. To determine if this is the correct replacement for you, look on your current part for casting numbers and match them to the cross reference below:

Cross ReferencePart Number
Volvo Penta3857656, 3852338, 3852338-7, 3857678
Osco MotorsN/A
Barr MarineOMC-1-3857656
Sierra Marine18-1848
Aqua PowerN/A
GLM Products51480

About Sierra
Sierra provides premium-quality aftermarket replacements for over 6,000 marine parts, tools, and components. Sierra products are engineered to meet or exceed OEM standards, and stand up in harsh marine environments. Every new Sierra part comes with a limited lifetime warranty that covers the useful life of the product against any defects in workmanship and materials.
FitsVolvo Penta & OMC V6 4.3GS 4.3GL 4.3GI
Item Weight27.2 lbs
Made InChina
Manufacturer #18-1848
MaterialCast Iron
Part Number18-1848
Replaces3857656, 3852338-7, 3857678
Shipping Dims16" x 10" x 7"
Shipping Weight28 lbs
TypeExhaust Manifold
WarrantyLimited Lifetime