EX13, EX17, EX21 Engine Parts Manual - Rev. 09/08

Oct 29, 2026

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Manual for identifying Robin 4-cycle engine models by model, specification, and code numbers, using the Product Number label to determine the combined specification (11 digits) and code number (4 digits). Describes how to use the manual layout, including section names, figure numbering, reference numbers, subassemblies, part numbers, descriptions, quantities, remarks, and FROM-TO code history. Includes group index and an example for Section 1 Crankcase Group with part tables and figures.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages42

Reading Time1 h 46 min

AccessFree to download

HOW TO USE THIS MANUAL

MANUAL LAYOUT

GROUP INDEX

INDEX OF DESCRIPTION SYMBOLS

SECTION 1 CRANKCASE GROUP

PARTS MANUAL Models EX13, EX17, EX21 ENGINE PUB-EP1676 Rev. 09/08 905 Telser Rd.• Lake Zurich, IL 60047 • Phone: 630-350-8200 • Fax: 630-350-8212 [e-mail: sales@robinamerica.com](e-mail: sales@robinamerica.com) • [www.robinamerica.com](www.robinamerica.com) © Copyright 2008 Robin America, Inc. EX13, EX17, EX21 -2- 09-08 HOW TO USE THIS MANUAL Robin engines are identiﬁed by MODEL, SPECIFICATION, and CODE NUMBER. For each model there may be many different versions called speciﬁcations. Each speciﬁcation will be unique in some way. The difference may only be the paint color or it may have a different typeof PTO or some other signiﬁcant difference. In order the identify the correct service part number, it is important to conﬁrm the speciﬁcation and code numbers for your engine. The speciﬁcation and code number together are know as the PRODUCT NUMBER. All Robin 4 cycle engines have a Product Number label similar to the label illustrated below. The Product Number Label has a 15 digit alphanumeric string that consists of the SPECIFICATION (SPEC) number (11 digits) and the CODE number (4 digits) . Please note the illustration below: E X 1 3 0 X X X X SPEC NO. (11 digits) CODE NO. (4 digits) PRODUCT NO. (15 digits) EX13, EX17, EX21 -3- 09-08 MANUAL LAYOUT | 1
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| 1. SECTION NAME Parts are broadly classiﬁed according to their functions. Refer to the Group Index (table of contents) for respective section name. 2. FIG. No. The FIG. number indexes the reference and part numbers to the illustration. Figure numbers that vary only in the tens place (i.e..: 700 and 710) are in a group of the same section (i.e..:Electrical Device Group) . 3. REF. No . The Reference number identiﬁes the part illustration with the corresponding part number in the part list. 4. SUBASSEMBLY SUBASSEMBLY parts of part assembly are listed below the assembly part. The subassembly part reference number is indicated by the number led by "-" such as "-1", "-2". 5. PART NUMBER It is the number assigned for sales unit. Use the PART No. when making an order. 6. DESCRIPTION It is designation of the part. 7. QTY. Quantity of each part used for each product. 8. REMARKS This gives a distinctive feature and/or a supplementary comment for the type, the speciﬁcation, and the part concerned. It also shows part number(s) interchangeable for the part. 9. FROM-TO This section shows [the CODE No. to](the CODE No. to) indicate the history of progress in which improved parts have been introduced in the product. The FROM-TO CODE No. helps to identify PART No. being employed in the product concerned. See the examples below: - The part is used in the product irrespective of CODE No. 2101- The part is used in the products with CODE No. of 2101 and after this number. -2100 The part is used in the products with CODE No. of 2100 and before this number. EX13, EX17, EX21 -4- 09-08 GROUP INDEX Group Name Page CRANKCASE GROUP ............................................................................... 6 CRANKSHAFT GROUP ............................................................................. 8 INTAKE and EXHAUST GROUP.............................................................. 10 GOVERNOR GROUP .............................................................................. 18 COOLING and STARTING GROUP......................................................... 22 FUEL, LUBRICANT GROUP.................................................................... 26 CARBURETOR GROUP .......................................................................... 28 ELECTRIC DEVICE GROUP .................................................................. 32 ACCESSORY GROUP............................................................................. 38 | INDEX OF DESCRIPTION SYMBOLS | | | --- | --- | | SYMBOL DESCRIPTION
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FAQs

How are Robin 4-cycle engines identified for correct service parts ordering?

Engines are identified by model, specification, and code numbers. Confirm the specification and code numbers so the correct service part number can be selected.

What does the Product Number label contain?

The Product Number label contains a 15-digit alphanumeric string composed of the specification (11 digits) and the code number (4 digits).

How do FROM-TO codes in the remarks help identify which parts belong to specific products?

FROM-TO indicates the history of progress where improved parts were introduced. It shows whether a part is used regardless of code number, only after a code number, or only before a code number.

Oct 29, 2026

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