North American Honda Odyssey Generations & Chassis Codes: A Complete Fitment Guide

The Honda Odyssey is one of the most recognizable minivans in North America, but identifying the correct replacement part is not always as simple as matching the model name and year.

For parts lookup, the generation, chassis code, engine code, trim level, and production year can all matter.

A 3.5L V6 Odyssey from 2006 and a 3.5L V6 Odyssey from 2012 may share the same displacement and even belong to the same J-series engine family, yet many components are completely different.

That is why understanding Honda Odyssey chassis codes is particularly important when ordering engine parts, suspension components, body parts, window moldings, door hardware, mirrors, and other vehicle-specific components.

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North American Honda Odyssey Generation Overview

* The first-generation North American Odyssey belongs to the RA series. Other RA variants were used in international/JDM applications and should not automatically be treated as North American Odyssey equivalents.

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1. First-Generation Honda Odyssey — RA Series

Model Years: 1995–1998

The first-generation Odyssey was fundamentally different from the large North American Odyssey that followed.

The North American version used the RA1 designation and was based heavily on the Accord architecture.

Depending on model year and specification, it used Honda four-cylinder engines such as the F22B6 and F23A7.

Key characteristics

• Accord-based architecture
• Four conventional hinged passenger doors
• Relatively compact body
• Four-cylinder powertrain
• Lower vehicle size compared with later North American Odysseys

This generation is particularly important when researching older replacement parts because the name Odyssey was already being used for different vehicles in different markets.

The Japanese/international Odyssey family also used RA-series codes such as RA2, RA3, RA4 and RA5, but these should not automatically be treated as North American RA1 applications.

This is one of the earliest examples of why "Honda Odyssey" alone is not enough information for parts identification.

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2. Second-Generation Honda Odyssey — RL1

Model Years: 1999–2004

For the second generation, Honda made a major strategic change for the North American market.

Instead of simply adapting the smaller international Odyssey, Honda developed a substantially larger minivan specifically suited to American family-car requirements.

The North American Odyssey became the RL1.

It adopted a 3.5L J-series V6 and a much larger body, while also introducing the dual sliding-door configuration that became a defining characteristic of the North American Odyssey.

Engine applications

• J35A1 — early models
• J35A4 — later models
• 3.5L V6

Key characteristics

• Larger North American-specific body
• 3.5L V6
• Dual sliding rear doors
• Three-row family-oriented interior
• Significantly greater cargo and passenger capacity

This generation represents the point where the North American Odyssey became a fundamentally different vehicle from the Japanese/international Odyssey.

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3. Third-Generation Honda Odyssey — RL3 / RL4

Model Years: 2005–2010

The third-generation Odyssey is especially important for engine and parts identification because Honda used different chassis codes depending on engine/trim configuration.

RL3

Generally associated with:

• LX
• EX
• J35A6 3.5L V6

RL4

Associated with higher-spec configurations using:

• J35A7 3.5L V6
• EX-L
• Touring
• Variable Cylinder Management (VCM)

Public engine references identify the J35A6 and J35A7 applications within the 2005–2010 Odyssey range, with the J35A7 used in VCM-equipped higher trims.

Why RL3/RL4 matters for parts

This distinction is important because two vehicles can both be listed simply as:

2005–2010 Honda Odyssey 3.5L V6

but the actual engine configuration may differ.

That can affect:

• Cylinder-head components
• Valves
• Valve springs
• Rocker arms
• Timing components
• VCM-related components
• Engine sensors
• Intake/exhaust components

Therefore, for engine-related parts, model year + engine code is often much safer than using the generic "3.5L V6" description.

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4. Fourth-Generation Honda Odyssey — RL5

Model Years: 2011–2017

The fourth-generation North American Odyssey moved to the RL5 chassis designation and used the J35Z8 3.5L V6.

This generation introduced a redesigned body and a new range of electronic and driver-assistance technologies.

Engine

3.5L J35Z8 V6

The J35Z8 is specifically associated with the 2011–2017 North American Odyssey RL5.

Transmission variation

One particularly important fitment detail is the transmission.

For the early years, transmission specification could vary by trim. For example, 2011–2013 models included both 5-speed and 6-speed applications depending on trim, while the 6-speed became standard across the range from 2014.

This is another excellent example of why:

Same model year ≠ automatically same replacement part.

When ordering transmission-related components, always check the exact vehicle configuration.

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5. Fifth-Generation Honda Odyssey — RL6

Model Years: 2018–Present

The fifth-generation North American Odyssey uses the RL6 chassis designation.

The engine changed again to a newer direct-injection J-series V6:

Engine

3.5L J35Y7 V6

This is an important correction to your original table: for the North American RL6 Odyssey, J35Y7 is the appropriate engine code rather than J35Y6.

Transmission evolution

The fifth-generation Odyssey also introduced significant transmission differences.

Depending on year and trim, the vehicle can be equipped with either a 9-speed or 10-speed automatic transmission. For example, 2018–2019 models used the ZF 9-speed on some lower trims while Touring/Elite models received Honda's 10-speed; the 10-speed became standard across the range from 2020.

Therefore, a listing simply saying:

2018–2022 Honda Odyssey Transmission Parts

may still be insufficient for exact fitment.

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The Most Important Odyssey Fitment Lesson

The Honda Odyssey provides an excellent example of why vehicle model name alone is not enough for accurate parts identification.

Consider these vehicles:

2006 Odyssey

RL3/RL4 + J35A6/J35A7

versus:

2012 Odyssey

RL5 + J35Z8

versus:

2019 Odyssey

RL6 + J35Y7

All three are:

Honda Odyssey 3.5L V6

But they belong to different generations, use different engine codes, different chassis architectures, and different components.

Even when the engine displacement remains 3.5L, the actual replacement part can be completely different.

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Chassis Code vs. Engine Code: What Do They Tell You?

This distinction is particularly important for engine rebuilders and professional parts buyers.

Chassis Code

Examples:

• RA1
• RL1
• RL3
• RL4
• RL5
• RL6

The chassis/generation code helps identify which vehicle architecture and generation you are dealing with.

Engine Code

Examples:

• F22B6
• F23A7
• J35A1
• J35A4
• J35A6
• J35A7
• J35Z8
• J35Y7

The engine code identifies the specific engine family/application.

Model / Product Codes

Honda catalogs and EPC systems may also use additional model or product identifiers. Codes such as SHJ and TK8 can appear in Honda parts documentation and should be interpreted according to the specific catalog/application rather than simply treated as universal synonyms for RL5 and RL6.

For parts ordering, the safest approach is therefore to cross-reference the VIN + chassis/model code + engine code + OEM part number whenever possible.

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Why This Matters When Buying Auto Parts

Imagine you are looking for a Honda Odyssey valve.

A seller might advertise:

Honda Odyssey 3.5L V6 Intake Valve

That description is potentially too broad.

A 2005–2010 Odyssey with a J35A6/J35A7 is not automatically equivalent to a 2011–2017 Odyssey with a J35Z8, even though both engines are 3.5L V6 J-series engines.

The same issue applies to:

• Window moldings
• Door mirrors
• Sliding-door components
• Engine mounts
• Timing components
• Cylinder-head parts
• Intake and exhaust valves
• Gaskets
• Suspension components
• Sensors
• Transmission components

For these products, OEM number and exact vehicle configuration are much more reliable than displacement alone.

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A Better Fitment Formula

For Honda Odyssey parts, I recommend using this hierarchy:

VIN → Model/Chassis Code → Model Year → Engine Code → Trim → OEM Part Number

Not every product requires every item, but the more vehicle-specific the component, the more information should be verified.

For example:

2011 Honda Odyssey + RL5 + J35Z8 + OEM number

is dramatically more useful than:

Honda Odyssey 3.5L

This is especially important for aftermarket parts, because aftermarket manufacturers may combine several OEM applications into one listing—or split one vehicle generation into several different product versions.

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Honda Odyssey North American Fitment Reference

* Engine-code references for the RL6 vary across published databases. J35Y6 and J35Y7 are both encountered in aftermarket and catalog references. For engine-specific parts, always verify the VIN, model code, engine identification, transmission, and OEM part number before ordering.

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Final Takeaway

The Honda Odyssey is a perfect example of why "make + model + engine size" is not always enough for automotive parts fitment.

A 3.5L Odyssey can belong to several different generations:

RL3/RL4 → RL5 → RL6

and each generation can have different engine codes, transmissions, body structures and component designs.

For professional engine rebuilders, mechanics and serious DIY enthusiasts, the safest rule is simple:

Don't identify the part by the vehicle name alone. Identify the vehicle first.

When possible, provide your VIN, chassis/model code, engine code and original OEM part number before ordering.

At CelerParts, this is also why we recommend customers provide their VIN or detailed vehicle information before shipment whenever fitment is uncertain. Cross-referencing the vehicle against the OEM application is much safer than relying on a generic "fits Honda Odyssey" description.