Quick verdict
If your Westerbeke marine generator is due for exhaust system attention and you want to stock key service items in one order, this USD 500.00 lot compiles 13 new OEM pieces. The centerpiece is the exhaust riser/mixing elbow (part 037533), plus an exhaust gasket, oil filter, air filter element, drive belt, brass fittings, and valve stem seals.
Who it suits
This is aimed at boat owners who do their own preventive maintenance or mechanics who service Westerbeke generators. It makes sense if you're planning an exhaust elbow replacement and want fresh filters and belt at the same time, or if you like keeping a spare kit onboard.
What stands out from the listed details
The bundle is built around actual Westerbeke part numbers: exhaust elbow 037533, oil filter 035828, air filter element 24-28802, drive belt 042790, exhaust gasket 036425, brass plug 036849, and brass elbow fitting 036614. It also includes four valve stem seals (040238) and part 033660. Everything is described as new and in original factory packaging. That makes it a convenient single purchase for a common generator service cycle.
Meaningful trade-offs
The trade-off is scope. You're buying a 13-piece lot rather than a single exhaust elbow. At USD 500.00, the price reflects a full service bundle, not an individual gasket. If your generator only needs one filter, this will be more than you need. If you're doing an overhaul, having the filters, belt, gaskets, fittings, and seals already in hand saves you from multiple parts orders. The part mix points to Westerbeke marine generator exhaust and routine-maintenance applications.
The bundle at a glance
NEW Westerbeke Marine Generator Exhaust Elbow- Lot OEM Filters Belt Gasket Seals

This is the product to choose when you want OEM components for both the exhaust side and the regular service side of a Westerbeke generator in a single lot. The description breaks out the parts clearly: exhaust riser/mixing elbow, oil filter, air filter, drive belt, exhaust gasket, brass plug and elbow fitting, plus valve stem seals. The listed price is USD 500.00.
The concrete limitation is that it's not a universal kit-it targets Westerbeke marine generator exhaust and service items, and the part numbers are specific to that application. If you're stocking a full maintenance set, the bundle's breadth is its advantage; if you only need the elbow, the extra consumables are part of the deal.
Bottom line
For someone with a Westerbeke marine generator looking to handle exhaust elbow replacement and basic service in one go, this USD 500.00 OEM parts lot is a practical way to buy the elbow, filters, belt, gaskets, fittings, and seals together. The part numbers give you a clear reference for the intended Westerbeke generator application, making it a complete maintenance parts set ready to go.